US3613315A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic mail opener
Assignee: Individual
•
Filing: 1969-11-13
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Granted: 1971-10-19
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Expires: 1989-11-13
Abstract
Abstract A MACHINE FOR OPENING THE ENVELOPES IN A STACK COMPRISES A PLURALITY OF ARMS ARRANGED TO PICK UP ENVELOPES INDIVIDUALLY FROM THE STACK. EACH ENVELOPE IS MOVED BY AN ARM IN A PATH SO THAT IS PASSES THREE ABRADING WHEELS. ONE OF ITS EDGES IS OPENED BY THE FIRST ABRADING WHEEL. THE ENVELOPE IS THEN ROTATED 90* BY THE ARM, AND A SECOND EDGE IS OPEND BY THE SECOND ABRADING WHEEL. THE ARM THEN ROTATES THE ENVELOPE A FURTHER 90* SO THAT A THIRD EDGE IS OPENED BY THE THIRD ABRADING WHEEL. THE ARM THEN DEPOSITS THE OPEND ENVELOPES IN A STACK.
Inventors
- 👤 Robert A Schickling
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 19:05
CPC Classifications
B; B43; B43M; B43M7/00; B43M7/001; B24; B24B; B24B19/00; Y; Y10; Y10S; Y10S83/00; Y10S83/912
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-10-18 | 1975-04-19 | 1975-10-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-10-18 | 1979-04-19 | 1979-10-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-10-18 | 1983-04-19 | 1983-10-19 | $7700.00 | Window Closed / Lapsed |