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US2819507A
Expired / Lapsed
US
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Sheet holding clamp
Assignee: Individual
•
Filing: 1956-06-25
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Granted: 1958-01-14
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Expires: 1976-06-25
Abstract
No abstract record available.
Inventors
- 👤 Petersen William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 10:30
CPC Classifications
F; F16; F16B; F16B5/00; F16B5/06; F16B5/0607; F16B5/0621; F16B5/0657; B; B25; B25B; B25B5/00; B25B5/06; B25B5/12; F16B2/00; F16B2/02; F16B2/18; F16B2/185; F16B5/0664; Y; Y10; Y10T; Y10T24/00; Y10T24/44; Y10T24/44009; Y10T24/44291; Y10T24/44333
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1753058A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-01-13 | 1961-07-15 | 1962-01-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-01-13 | 1965-07-15 | 1966-01-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-01-13 | 1969-07-15 | 1970-01-14 | $7700.00 | Window Closed / Lapsed |