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US2646719A
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Clamping device
Assignee: Pictorial Machinery Ltd
•
Filing: 1950-10-31
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Granted: 1953-07-28
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Expires: 1970-10-31
Abstract
No abstract record available.
Inventors
- 👤 Spriggs John Eric
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 14:29
CPC Classifications
G; G03; G03B; G03B27/00; G03B27/32; G03B27/52; G03B27/62; G03B27/6207; G03B27/6214; Y; Y10; Y10T; Y10T24/00; Y10T24/10; Y10T24/13; Y10T24/1394; Y10T292/00; Y10T292/08; Y10T292/0911; Y10T292/0913; Y10T292/0914; Y10T292/0915; Y10T292/0926; Y10T292/20; Y10T292/225
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1596242A
Cited
US2257581A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-07-27 | 1957-01-26 | 1957-07-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-07-27 | 1961-01-26 | 1961-07-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-07-27 | 1965-01-26 | 1965-07-28 | $7700.00 | Window Closed / Lapsed |