US3391904A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Optimum response tip seal
Assignee: RTX Corp
•
Filing: 1966-11-02
•
Granted: 1968-07-09
•
Expires: 1986-11-02
Abstract
No abstract record available.
Inventors
- 👤 Kenneth J Albert
- 👤 Harry J Young
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 01:33
CPC Classifications
F; F01; F01D; F01D11/00; F01D11/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2859934A
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US2858104A
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US2863634A
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US2962256A
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US3092393A
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US2994472A
Cited
US3056583A
Cited
GB1020900A
Cited
US3227418A
Cited
US3243158A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-07-09 | 1972-01-08 | 1972-07-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-07-09 | 1976-01-08 | 1976-07-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-07-09 | 1980-01-08 | 1980-07-09 | $7700.00 | Window Closed / Lapsed |