US2767741A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Forming tube for glass yarn
Assignee: Boston Woven Hose and Rubber Co
•
Filing: 1953-11-23
•
Granted: 1956-10-23
•
Expires: 1973-11-23
Abstract
No abstract record available.
Inventors
- 👤 Thomas M Knowland
- 👤 Raymond S Camelio
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:55
CPC Classifications
B; B65; B65H; B65H75/00; B65H75/02; B65H75/18; B65H75/50; B65H2701/00; B65H2701/30; B65H2701/31; Y; Y10; Y10S; Y10S138/00; Y10S138/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US845575A
Cited
US2321064A
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US2383733A
Cited
US2577214A
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US2661025A
Cited
US2614058A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-10-23 | 1960-04-23 | 1960-10-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-10-23 | 1964-04-23 | 1964-10-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-10-23 | 1968-04-23 | 1968-10-23 | $7700.00 | Window Closed / Lapsed |