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Patent US2492973A successfully refreshed from Google Patents.
US2492973A
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US
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Process for bonding thermoplastic materials
Assignee: Individual
•
Filing: 1947-07-15
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Granted: 1950-01-03
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Expires: 1967-07-15
Abstract
No abstract record available.
Inventors
- 👤 Floyd J Dofsen
- 👤 Elmer L Danielson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 14:13
CPC Classifications
B; B29; B29C; B29C45/00; B29C45/14; B29C45/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US202441A
Cited
US2350787A
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US1738696A
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US1668590A
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US2120553A
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US2217661A
Cited
CH199491A
Cited
GB521056A
Cited
US2254232A
Cited
US2345305A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-01-02 | 1953-07-04 | 1954-01-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-01-02 | 1957-07-04 | 1958-01-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-01-02 | 1961-07-04 | 1962-01-03 | $7700.00 | Window Closed / Lapsed |