Patent US2178955A successfully refreshed from Google Patents.
US2178955A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of rubber filaments
Assignee: Individual
•
Filing: 1934-07-02
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Granted: 1939-11-07
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Expires: 1954-07-02
Abstract
No abstract record available.
Inventors
- 👤 Draemann Max
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 04:33
CPC Classifications
B; B29; B29D; B29D99/00; B29D99/0078; B29C; B29C48/00; B29C48/25; B29C48/36; B29C48/50; B29C48/72; B29C48/725; B29C48/03; B29C48/05; B29K; B29K2021/00; B29L; B29L2031/00; B29L2031/731
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1942-11-06 | 1943-05-08 | 1943-11-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1946-11-06 | 1947-05-08 | 1947-11-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1950-11-06 | 1951-05-08 | 1951-11-07 | $7700.00 | Window Closed / Lapsed |