US2822857A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making flexible conduits
Assignee: Dayton Rubber Co
•
Filing: 1956-09-20
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Granted: 1958-02-11
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Expires: 1976-09-20
Abstract
No abstract record available.
Inventors
- 👤 Edward M Rothermel
- 👤 Jr Russell B Waddell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 02:28
CPC Classifications
B; B29; B29D; B29D23/00; B29D23/18; A; A47; A47L; A47L9/00; A47L9/24; B29K; B29K2021/00; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49863; Y10T29/4987; Y10T29/49872; Y10T29/53; Y10T29/53657
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2467559A
Cited
US2272704A
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US2560369A
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US2715914A
Cited
US2570259A
Cited
US2731070A
Cited
US2739616A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-02-10 | 1961-08-12 | 1962-02-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-02-10 | 1965-08-12 | 1966-02-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-02-10 | 1969-08-12 | 1970-02-11 | $7700.00 | Window Closed / Lapsed |