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US3504697A
Expired / Lapsed
US
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Movable meter-unit restriction
Assignee: Auto Research Corp
•
Filing: 1968-01-09
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Granted: 1970-04-07
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Expires: 1988-01-09
Abstract
No abstract record available.
Inventors
- 👤 Francis E Colgan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:19
CPC Classifications
F; F16; F16N; F16N27/00; F16N27/005; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7738; Y10T137/7781; Y10T137/7783
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US675854A
Cited
US2411392A
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US2671989A
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US2981279A
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US2992659A
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US3297260A
Cited
US3392750A
Cited
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 |