US2969554A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Machine for simultaneously pressing and forming joints in the hinge areas of cased books
Assignee: RR Donnelley and Sons Co
•
Filing: 1956-09-27
•
Granted: 1961-01-31
•
Expires: 1976-09-27
Abstract
No abstract record available.
Inventors
- 👤 John O Mccahon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 18:22
CPC Classifications
B; B42; B42C; B42C13/00; B42C13/003
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2083720A
Cited
US2151957A
Cited
US2151991A
Cited
US2635262A
Cited
US2636195A
Cited
US2714732A
Cited
US2853725A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-01-31 | 1964-08-01 | 1965-01-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-01-31 | 1968-08-01 | 1969-01-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-01-31 | 1972-08-01 | 1973-01-31 | $7700.00 | Window Closed / Lapsed |