US2370952A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of and means for treating rubber
Assignee: Farrel Birmingham Co Inc
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Filing: 1941-08-07
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Granted: 1945-03-06
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Expires: 1961-08-07
Abstract
No abstract record available.
Inventors
- 👤 William A Gordon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 07:49
CPC Classifications
B; B29; B29B; B29B9/00; B29B9/02; B29B9/06; B29B9/065; B29B7/00; B29B7/30; B29B7/34; B29B7/38; B29B7/40; B29B7/42; B29B7/421; B29C; B29C48/00; B29C48/25; B29C48/36; B29C48/50; B29C48/505; B29C48/56; B29C48/03; B29C48/04; Y; Y10; Y10S; Y10S100/00; Y10S100/903; Y10S100/904
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) | 1948-03-05 | 1948-09-04 | 1949-03-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1952-03-05 | 1952-09-04 | 1953-03-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1956-03-05 | 1956-09-04 | 1957-03-06 | $7700.00 | Window Closed / Lapsed |