US2462645A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of treating rubber scrap
Assignee: Boston Woven Hose and Rubber Co
•
Filing: 1945-07-10
•
Granted: 1949-02-22
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Expires: 1965-07-10
Abstract
No abstract record available.
Inventors
- 👤 Thomas M Knowland
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:22
CPC Classifications
B; B29; B29B; B29B17/00; B29B17/02; B29B2017/0203; B29B2017/0213; B29B2017/0217; B29B2017/0224; B29B2017/0234; B29B2017/0237; B29B2017/0241; B29K; B29K2021/00; B29K2105/00; B29K2105/06; B29K2105/12; B29L; B29L2030/00; Y; Y02; Y02W; Y02W30/00; Y02W30/50; Y02W30/52; Y02W30/62; Y10; Y10S; Y10S241/00; Y10S241/31
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US281769A
Cited
US898020A
Cited
US1632520A
Cited
US1401795A
Cited
US1695569A
Cited
US1607291A
Cited
US2126672A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-02-22 | 1952-08-23 | 1953-02-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-02-22 | 1956-08-23 | 1957-02-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-02-22 | 1960-08-23 | 1961-02-22 | $7700.00 | Window Closed / Lapsed |