Patent US3294057A successfully refreshed from Google Patents.
US3294057A
Expired / Lapsed
US
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Automatic rural mail box flag tripper
Assignee: Individual
•
Filing: 1966-02-18
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Granted: 1966-12-27
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Expires: 1986-02-18
Abstract
No abstract record available.
Inventors
- 👤 Sam C Feil
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 08:02
CPC Classifications
A; A47; A47G; A47G29/00; A47G29/12; A47G29/1209; A47G29/121; G; G08; G08B; G08B21/00; G08B21/18; G08B21/24; A47G2029/12105
Claims Analysis
Total Claims: 0
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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) | 1969-12-26 | 1970-06-27 | 1970-12-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-26 | 1974-06-27 | 1974-12-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-26 | 1978-06-27 | 1978-12-27 | $7700.00 | Window Closed / Lapsed |