US3279598A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mail assorting device
Assignee: Pitney Bowes Inc
•
Filing: 1965-05-17
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Granted: 1966-10-18
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Expires: 1985-05-17
Abstract
No abstract record available.
Inventors
- 👤 Monroe G Barnard
- 👤 Walter J Hanson
- 👤 Lawrence N Varholak
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 23:32
CPC Classifications
B; B07; B07C; B07C1/00; B07C1/02; B07C1/04; Y; Y10; Y10S; Y10S209/00; Y10S209/90
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
89 words
AN APPARATUS FOR HANDLING PIECES OF LETTER MAIL COMPRISING: (A) A DISC HAVING A CIRCULAR PERIPHERY; (B) THE UPPER SURFACE OF SAID DISC BEING FORMED OF A MATERIAL PROVIDING A COEFFICIENT OF FRICTION BETWEEN SAID SURFACE AND A PIECE OF LETTER MAIL GREATER THAN THE COEFFICIENT OF FRICTION BETWEEN TWO PIECES OF LETTER MAIL; (C) AN ARCUATE GUIDE EXTENDING ABOUT AND ADJACENT TO A SUBSTANTIALLY PORTION OF THE PERIPHERY OF THE DISC; (D) MEANS OPERATIVELY CONNECTED FOR ROTATABLY DRIVING SAID DISC AT A SUFFICIENT VELOCITY THAT PIECES OF LET-
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) | 1969-10-17 | 1970-04-18 | 1970-10-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-17 | 1974-04-18 | 1974-10-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-17 | 1978-04-18 | 1978-10-18 | $7700.00 | Window Closed / Lapsed |