US2477040A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sewing machine for thermoplastic materials
Assignee: RCA Corp
•
Filing: 1945-03-13
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Granted: 1949-07-26
•
Expires: 1965-03-13
Abstract
No abstract record available.
Inventors
- 👤 George H Brown
- 👤 Rudolph A Bierwirth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 18:56
CPC Classifications
B; B29; B29C; B29C65/00; B29C65/02; B29C65/18; B29C65/24; B29C65/30; B29C65/32; B29C65/74; B29C65/743; B29C65/7437; B29C65/78; B29C65/7841; B29C65/7858; B29C65/7888; B29C65/7891; B29C66/00; B29C66/01; B29C66/05; B29C66/10; B29C66/11; B29C66/112; B29C66/1122; B29C66/20; B29C66/21; B29C66/40; B29C66/41; B29C66/43; B29C66/70; B29C66/72; B29C66/729; B29C66/80; B29C66/83; B29C66/832; B29C66/8322; B29C66/84; B29C66/845; B29C66/81; B29C66/812; B29C66/8126; B29C66/81262; B29C66/81263; B29K; B29K2313/00; Y; Y10; Y10T; Y10T156/00; Y10T156/12; Y10T156/1304
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1900842A
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US1987458A
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US1878458A
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US2093425A
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US1954678A
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US2004041A
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US2063345A
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US2044263A
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US2232640A
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US2268510A
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US2322298A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-07-25 | 1953-01-24 | 1953-07-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-07-25 | 1957-01-24 | 1957-07-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-07-25 | 1961-01-24 | 1961-07-26 | $7700.00 | Window Closed / Lapsed |