US3515159A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid majority gate
Assignee: Corning Glass Works
•
Filing: 1968-04-23
•
Granted: 1970-06-02
•
Expires: 1988-04-23
Abstract
No abstract record available.
Inventors
- 👤 Thomas W Bermel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:10
CPC Classifications
F; F15; F15C; F15C1/00; F15C1/08; F15C1/10; F15C1/12; Y; Y10; Y10T; Y10T137/00; Y10T137/206; Y10T137/212; Y10T137/2125; Y10T137/2147
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3093306A
Cited
US3128039A
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US3250285A
Cited
US3227368A
Cited
US3285264A
Cited
US3342197A
Cited
US3276689A
Cited
US3390611A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-06-01 | 1973-12-01 | 1974-06-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-06-01 | 1977-12-01 | 1978-06-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-06-01 | 1981-12-01 | 1982-06-02 | $7700.00 | Window Closed / Lapsed |