US2370319A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Paper perforator
Assignee: Dohner & Lippincott
•
Filing: 1944-11-07
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Granted: 1945-02-27
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Expires: 1964-11-07
Abstract
No abstract record available.
Inventors
- 👤 Lippincott Joshua Gordon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 11:36
CPC Classifications
B; B42; B42F; B42F13/00; B42F13/40; B42F13/404; Y; Y10; Y10T; Y10T83/00; Y10T83/748; Y10T83/7593; Y10T83/7667; Y10T83/869; Y10T83/8752; Y10T83/8756; Y10T83/8798; Y10T83/929; Y10T83/9411; Y10T83/9423; Y10T83/9428; Y10T83/943
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) | 1948-02-27 | 1948-08-28 | 1949-02-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1952-02-27 | 1952-08-28 | 1953-02-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1956-02-27 | 1956-08-28 | 1957-02-27 | $7700.00 | Window Closed / Lapsed |