US2438685A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for joining thermoplastic pieces
Assignee: HAMMOND AIRCRAFT Co
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Filing: 1943-09-20
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Granted: 1948-03-30
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Expires: 1963-09-20
Abstract
No abstract record available.
Inventors
- 👤 Don E Stevens
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 00:45
CPC Classifications
B; B29; B29C; B29C66/00; B29C66/01; B29C66/05; B29C66/10; B29C66/11; B29C66/114; B29C66/1142; B29C65/00; B29C65/02; B29C65/18; B29C65/20; B29C65/2007; B29C65/2038; B29C65/22; B29C65/221; B29C65/224; B29C65/228; B29C65/78; B29C65/7858; B29C65/7861; B29C65/7864; B29C66/03; B29C66/032; B29C66/0324; B29C66/03241; B29C66/32; B29C66/326; B29C66/3262; B29C66/40; B29C66/41; B29C66/43; B29C66/70; B29C66/73; B29C66/739; B29C66/7392; B29C66/73921; B29C66/80; B29C66/81; B29C66/816; B29C66/8161; B29C66/83; B29C66/832; B29C66/8322; B29C66/836; B29C65/48; B29C65/4895; B29C66/71; B29C66/90; B29C66/91; B29C66/919
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1970396A
Cited
US2220545A
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US2156441A
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US2293568A
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US2322298A
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US2360950A
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US2343106A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-03-30 | 1951-09-29 | 1952-03-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-03-30 | 1955-09-29 | 1956-03-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-03-30 | 1959-09-29 | 1960-03-30 | $7700.00 | Window Closed / Lapsed |