US2911279A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Time stamp changing mechanism for mail cancelling systems or the like
Assignee: Emerson Radio Corp
•
Filing: 1957-12-05
•
Granted: 1959-11-03
•
Expires: 1977-12-05
Abstract
No abstract record available.
Inventors
- 👤 Jr Philip Pollak
- 👤 Lopes Edward James
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 14:34
CPC Classifications
G; G07; G07B; G07B17/00; G07B17/00459; G07B17/00508; G07B2017/00516; G07B2017/00524; G07B2017/00548
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2120976A
Cited
US2412472A
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US875272A
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US1102795A
Cited
US1339900A
Cited
US2355514A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-11-02 | 1963-05-04 | 1963-11-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-11-02 | 1967-05-04 | 1967-11-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-11-02 | 1971-05-04 | 1971-11-03 | $7700.00 | Window Closed / Lapsed |