US3423502A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Presses
Assignee: Churchill Instrument Co Ltd
•
Filing: 1966-05-31
•
Granted: 1969-01-21
•
Expires: 1986-05-31
Abstract
No abstract record available.
Inventors
- 👤 Gordon Edward Tribe Stimpson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 18:11
CPC Classifications
B; B29; B29C; B29C33/00; B29C33/20; B29C33/202; B29C45/00; B29C45/17; B29C45/64; B29C45/66; Y; Y10; Y10S; Y10S425/00; Y10S425/223; Y10T; Y10T29/00; Y10T29/49; Y10T29/49998
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2309460A
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US2298044A
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US2389169A
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US2485290A
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US2666230A
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US2676357A
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US2790204A
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US2880461A
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US2938232A
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US3036337A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-01-21 | 1972-07-22 | 1973-01-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-01-21 | 1976-07-22 | 1977-01-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-01-21 | 1980-07-22 | 1981-01-21 | $7700.00 | Window Closed / Lapsed |