Patent US3769775B1 successfully refreshed from Google Patents.
US2963072A
Expired / Lapsed
US
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Thermoplastic welding device
Assignee: Individual
•
Filing: 1955-11-23
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Granted: 1960-12-06
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Expires: 1975-11-23
Abstract
No abstract record available.
Inventors
- 👤 Henry D Swartz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 13:56
CPC Classifications
B; B29; B29C; B29C66/00; B29C66/01; B29C66/344; B29C65/00; B29C65/02; B29C65/18; B29C65/24; B29C65/30; B29C66/05; B29C66/10; B29C66/11; B29C66/112; B29C66/1122; B29C66/40; B29C66/41; B29C66/43; B29C66/431; B29C66/4312; B29C66/43121; B29C66/50; B29C66/51; B29C66/54; B29C66/545; B29C66/432; B29C66/70; B29C66/71; Y; Y10; Y10T; Y10T156/00; Y10T156/17
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1899067A
Cited
US2424558A
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US2421373A
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US2556008A
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US2625201A
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US2574094A
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US2524584A
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US2556452A
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US2638964A
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US2785728A
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US2758631A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-12-06 | 1964-06-06 | 1964-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-12-06 | 1968-06-06 | 1968-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-12-06 | 1972-06-06 | 1972-12-06 | $7700.00 | Window Closed / Lapsed |