US3091681A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heater for bowling balls
Assignee: Individual
•
Filing: 1961-04-03
•
Granted: 1963-05-28
•
Expires: 1981-04-03
Abstract
No abstract record available.
Inventors
- 👤 Alan H Mayer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 15:50
CPC Classifications
A; A63; A63B; A63B47/00; A63B47/005
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE632023C
Cited
US2098735A
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US2214084A
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US2396591A
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US2469468A
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US2482665A
Cited
US2554231A
Cited
US2617012A
Cited
US2920243A
Cited
US3013141A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-05-27 | 1966-11-26 | 1967-05-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-05-27 | 1970-11-26 | 1971-05-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-05-27 | 1974-11-26 | 1975-05-28 | $7700.00 | Window Closed / Lapsed |