US3451343A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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Assignee: ENPO INDUSTRIES Inc A CORP OF
•
Filing: 1967-02-03
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Granted: 1969-06-24
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Expires: 1987-02-03
Abstract
No abstract record available.
Inventors
- 👤 Walter A Kabele
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 02:10
CPC Classifications
F; F04; F04D; F04D29/00; F04D29/60; F04D29/62; F04D29/628; F04D29/622
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB285335A
Cited
US2037961A
Cited
US2566249A
Cited
US2945448A
Cited
US3103177A
Cited
US3272137A
Cited
US3276385A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-06-23 | 1972-12-23 | 1973-06-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-23 | 1976-12-23 | 1977-06-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-23 | 1980-12-23 | 1981-06-24 | $7700.00 | Window Closed / Lapsed |