US3245240A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Knob protector
Assignee: JAMES AND WILLIAM DE FORREST
•
Filing: 1964-05-08
•
Granted: 1966-04-12
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Expires: 1984-05-08
Abstract
No abstract record available.
Inventors
- 👤 Forrest William E De
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:33
CPC Classifications
E; E05; E05B; E05B13/00; E05B13/001; Y; Y10; Y10S; Y10S70/00; Y10S70/58; Y10T; Y10T70/00; Y10T70/30; Y10T70/50; Y10T70/5093; Y10T70/554; Y10T70/5611; Y10T70/5757; Y10T70/5765; Y10T70/5854; Y10T70/5867; Y10T70/70; Y10T70/7441; Y10T70/7915
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1329913A
Cited
US1390674A
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US1439552A
Cited
CH122310A
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US1829444A
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US2194521A
Cited
US2822682A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-04-11 | 1969-10-11 | 1970-04-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-11 | 1973-10-11 | 1974-04-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-11 | 1977-10-11 | 1978-04-12 | $7700.00 | Window Closed / Lapsed |