US2769496A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary cutting die for perforating signatures
Assignee: Individual
•
Filing: 1951-11-23
•
Granted: 1956-11-06
•
Expires: 1971-11-23
Abstract
No abstract record available.
Inventors
- 👤 Spinner Isidore
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:05
CPC Classifications
B; B26; B26F; B26F1/00; B26F1/02; B26F1/06; B26F1/10; B26F1/18; B26F1/20; Y; Y10; Y10T; Y10T83/00; Y10T83/929; Y10T83/9314; Y10T83/9372; Y10T83/9382
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US202956A
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US1206880A
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US1880031A
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US1937499A
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US2077403A
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US2018855A
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US2107462A
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US2205573A
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US2193534A
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US2270688A
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US2343120A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-11-06 | 1960-05-07 | 1960-11-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-11-06 | 1964-05-07 | 1964-11-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-11-06 | 1968-05-07 | 1968-11-06 | $7700.00 | Window Closed / Lapsed |