US3509897A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluidic logic memory element
Assignee: Aro Corp
•
Filing: 1967-05-05
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Granted: 1970-05-05
•
Expires: 1987-05-05
Abstract
No abstract record available.
Inventors
- 👤 Joseph Abler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 00:50
CPC Classifications
F; F15; F15C; F15C1/00; F15C1/02; F15C1/06; Y; Y10; Y10T; Y10T137/00; Y10T137/206; Y10T137/2229; Y10T137/2256; Y10T137/2262
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3181546A
Cited
US3270758A
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US3269419A
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US3340884A
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US3275013A
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US3329152A
Cited
US3232533A
Cited
US3380655A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-05-04 | 1973-11-03 | 1974-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-05-04 | 1977-11-03 | 1978-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-05-04 | 1981-11-03 | 1982-05-05 | $7700.00 | Window Closed / Lapsed |