US3500167A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Battery condition analyzer
Assignee: VARI Tech Co
•
Filing: 1966-12-12
•
Granted: 1970-03-10
•
Expires: 1986-12-12
Abstract
No abstract record available.
Inventors
- 👤 Merlin J Applegate
- 👤 William R Dufendach
- 👤 Floyd Brouwer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 04:25
CPC Classifications
H; H02; H02J; H02J7/00; H02J7/90; H02J7/92; H01; H01M; H01M10/00; H01M10/42; H01M10/48; G; G01; G01R; G01R19/00; G01R19/165; G01R19/16533; G01R19/16538; G01R19/16542; Y; Y02; Y02E; Y02E60/00; Y02E60/10; Y10; Y10S; Y10S320/00; Y10S320/18; Y10S320/21
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2675522A
Cited
US2835862A
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US3176210A
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US3305754A
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US3278824A
Cited
US3355651A
Cited
US3392328A
Cited
US3387200A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-03-09 | 1973-09-08 | 1974-03-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-03-09 | 1977-09-08 | 1978-03-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-03-09 | 1981-09-08 | 1982-03-10 | $7700.00 | Window Closed / Lapsed |