US2983056A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pneumatic foot wear
Assignee: Individual
•
Filing: 1959-05-12
•
Granted: 1961-05-09
•
Expires: 1979-05-12
Abstract
No abstract record available.
Inventors
- 👤 Steven A Murawski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:21
CPC Classifications
A; A43; A43B; A43B13/00; A43B13/02; A43B13/12; A43B13/14; A43B13/18; A43B13/20; A43B13/206
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1498838A
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US1596923A
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US1961745A
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US2170947A
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US2237190A
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US2467322A
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US2323562A
Cited
US2668789A
Cited
US2772196A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-05-08 | 1964-11-07 | 1965-05-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-08 | 1968-11-07 | 1969-05-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-08 | 1972-11-07 | 1973-05-09 | $7700.00 | Window Closed / Lapsed |