US2818904A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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Assignee: Alsynite Company of America
•
Filing: 1955-08-08
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Granted: 1958-01-07
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Expires: 1975-08-08
Abstract
No abstract record available.
Inventors
- 👤 Francis X Ambrose
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 07:55
CPC Classifications
B; B29; B29C; B29C43/00; B29C43/32; B29C43/44; B29C70/00; B29C70/04; B29C70/28; B29C70/40; B29C70/50; B29C70/504; B29C70/54; B29C70/542; B30; B30B; B30B3/00; B30B3/04; Y; Y10; Y10T; Y10T156/00; Y10T156/17; Y10T156/1702; Y10T156/1712; Y10T156/1741
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1421805A
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US1427477A
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US1943145A
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US2234214A
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US2316824A
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US2518263A
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US2528152A
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US2628176A
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US2687165A
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US2726979A
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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) | 1961-01-06 | 1961-07-08 | 1962-01-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-01-06 | 1965-07-08 | 1966-01-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-01-06 | 1969-07-08 | 1970-01-07 | $7700.00 | Window Closed / Lapsed |