US3143100A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Unfolding mechanism for envelope opening apparatus
Assignee: Individual
•
Filing: 1961-12-26
•
Granted: 1964-08-04
•
Expires: 1981-12-26
Abstract
No abstract record available.
Inventors
- 👤 Edward A Krupotich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 13:14
CPC Classifications
B; B43; B43M; B43M7/00; B43M7/02; Y; Y10; Y10S; Y10S83/00; Y10S83/912
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
100 words
IN AN APPARATUS FOR OPENING ENVELOPES AND COMPRISING MEANS DESTROYING THREE EDGES OF EACH ENVELOPE, AN ENVELOPE UNFOLDING MECHANISM INCLUDING: (A) A FRAME, (B) SPACED CONVEYERS CARRIED END TO END BY THE FRAME AND EACH COMPRISING A BELT TRAINED OVER A PAIR OF SPACED ROLLERS, ONE TO RECEIVE ENVELOPES FROM THE APPARATUS AND ONE TO DELIVER OPENED ENVELOPES, (C) POSITIONING MEANS TO MOMENTARILY STOP EACH ENVELOPE AT THE OPENING BETWEEN SAID CONVEYERS, (D) AND UNFOLDING MEANS OPERATING BETWEEN SAID CONVEYERS TO LAY BACK ONE SIDE OF EACH STOPPED ENVELOPE FOR DELIVERY IN AN OPENED CONDITION BY THE SECOND MENTIONED CONVEYER.
Claim 2
Dependent Claim
100 words
IN AN APPARATUS FOR OPENING ENVELOPES AND COMPRISING MEANS DESTROYING THREE EDGES OF EACH ENVELOPE, AN ENVELOPE UNFOLDING MECHANISM INCLUDING: (A) A FRAME, (B) SPACED CONVEYERS CARRIED END TO END BY THE FRAME AND EACH COMPRISING A BELT TRAINED OVER A PAIR OF SPACED ROLLERS, ONE TO RECEIVE ENVELOPES FROM THE APPARATUS AND ONE TO DELIVER OPENED ENVELOPES, (C) POSITIONING MEANS TO MOMENTARILY STOP EACH ENVELOPE AT THE OPENING BETWEEN SAID CONVEYERS, (D) AND UNFOLDING MEANS OPERATING BETWEEN SAID CONVEYERS TO LAY BACK ONE SIDE OF EACH STOPPED ENVELOPE FOR DELIVERY IN AN OPENED CONDITION BY THE SECOND MENTIONED CONVEYER.
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) | 1967-08-04 | 1968-02-03 | 1968-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-08-04 | 1972-02-03 | 1972-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-08-04 | 1976-02-03 | 1976-08-04 | $7700.00 | Window Closed / Lapsed |