US2950674A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Trip mechanism for printing machines
Assignee: RW Crabtree and Sons Ltd
•
Filing: 1955-09-26
•
Granted: 1960-08-30
•
Expires: 1975-09-26
Abstract
No abstract record available.
Inventors
- 👤 Harold M Taylor
- 👤 Derek A Stevenson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 09:23
CPC Classifications
B; B41; B41F; B41F33/00; B41F33/04; B41F33/08; B41F13/00; B41F13/08; B41F13/24; B41F13/34; B41F13/40
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2157240A
Cited
US2205720A
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US2216565A
Cited
US2267380A
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US2419403A
Cited
US2539361A
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US2689524A
Cited
US2773445A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-08-30 | 1964-02-29 | 1964-08-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-08-30 | 1968-02-29 | 1968-08-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-08-30 | 1972-02-29 | 1972-08-30 | $7700.00 | Window Closed / Lapsed |