Patent US2769187A successfully refreshed from Google Patents.
US2769187A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for manufacturing book cases or covers
Assignee: Individual
•
Filing: 1951-04-26
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Granted: 1956-11-06
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Expires: 1971-04-26
Abstract
No abstract record available.
Inventors
- 👤 D Huy Franciscus Pieter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 13:07
CPC Classifications
B; B42; B42C; B42C7/00; B42C7/006
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US391266A
Cited
US490895A
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US565832A
Cited
US834011A
Cited
US1424269A
Cited
US1534696A
Cited
US2098060A
Cited
GB598899A
Cited
US2556787A
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 |