US3504731A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Battery element fabricating machine
Assignee: Farmer Mold and Machine Works Inc
•
Filing: 1967-06-29
•
Granted: 1970-04-07
•
Expires: 1987-06-29
Abstract
No abstract record available.
Inventors
- 👤 John E Farmer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 22:18
CPC Classifications
H; H01; H01M; H01M10/00; H01M10/06; H01M10/12; H01M10/14; H01M50/00; H01M50/50; H01M50/531; H01M50/536; Y; Y02; Y02E; Y02E60/00; Y02E60/10; Y02P; Y02P70/00; Y02P70/50; Y10; Y10S; Y10S164/00; Y10S164/01; Y10S165/00; Y10S165/90; Y10T; Y10T29/00; Y10T29/51; Y10T29/5124; Y10T29/53; Y10T29/53039; Y10T29/53061; Y10T29/5313; Y10T29/53135; Y10T29/53261
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1561780A
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US1816059A
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US2502373A
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US2799905A
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US2978762A
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US3253306A
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US3229339A
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US3395748A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-04-06 | 1973-10-06 | 1974-04-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-04-06 | 1977-10-06 | 1978-04-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-04-06 | 1981-10-06 | 1982-04-07 | $7700.00 | Window Closed / Lapsed |