US4101877A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mail delivery alarm system
Assignee: Individual
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Filing: 1976-06-11
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Granted: 1978-07-18
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Expires: 1996-06-11
Abstract
Abstract A system for activating a light and music box in the home when mail is deposited in a mail box located outside the home, and for deactivating the light and music box when the mail is removed. Switch means is provided inside the mail box and a circuit is arranged to activate the signal devices every other time the switch means is closed. Additionally, a signal light is provided on the mail box to enable a visitor to find the proper home at night, and an electrically operated lock is provided for the mail box to prevent the mail from being stolen.
Inventors
- 👤 Donald W. Rush
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 17:02
CPC Classifications
A; A47; A47G; A47G29/00; A47G29/12; A47G29/1209; A47G29/121; A47G29/1212
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
168 words
A system for activating at least one signal device located in a house when mail is deposited in a mailbox located outside the house and for deactivating the signal device when the mail is withdrawn from the mailbox, comprising: a house having a signal device or a plurality of signal devices therein; a mailbox located outside said house and having an openable and closeable door, switch means located in said mailbox behind said door, said switch means being closed when said door is closed and open when said door is open; means for activating said signal device or plurality of devices every other time said switch means is closed and for deactivating said signal device at each time said switch means is closed between said every other time; and an electrically engagable lock means located in said mailbox for locking the mailbox door shut, said lock being engaged at said every other time said switch means is closed, and manually operated switch means for disengaging said lock means.
Claim 2
Independent Claim
168 words
A system for activating at least one signal device located in a house when mail is deposited in a mailbox located outside the house and for deactivating the signal device when the mail is withdrawn from the mailbox, comprising: a house having a signal device or a plurality of signal devices therein; a mailbox located outside said house and having an openable and closeable door, switch means located in said mailbox behind said door, said switch means being closed when said door is closed and open when said door is open; means for activating said signal device or plurality of devices every other time said switch means is closed and for deactivating said signal device at each time said switch means is closed between said every other time; and an electrically engagable lock means located in said mailbox for locking the mailbox door shut, said lock being engaged at said every other time said switch means is closed, and manually operated switch means for disengaging said lock means.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-07-17 | 1982-01-16 | 1982-07-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-07-17 | 1986-01-16 | 1986-07-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-07-17 | 1990-01-16 | 1990-07-18 | $7700.00 | Window Closed / Lapsed |