US2779077A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Foot attachment for facilitating swimming
Assignee: Individual
•
Filing: 1952-02-23
•
Granted: 1957-01-29
•
Expires: 1972-02-23
Abstract
No abstract record available.
Inventors
- 👤 Richard M Kline
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 02:50
CPC Classifications
A; A63; A63B; A63B31/00; A63B31/08; A63B31/10; A63B31/11; Y; Y10; Y10T; Y10T24/00; Y10T24/40; Y10T24/4072
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US327622A
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US550112A
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US689927A
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US706799A
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US1032755A
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US1420604A
Cited
US1533924A
Cited
GB324113A
Cited
FR704864A
Cited
FR796237A
Cited
US2423571A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-01-29 | 1960-07-30 | 1961-01-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-01-29 | 1964-07-30 | 1965-01-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-01-29 | 1968-07-30 | 1969-01-29 | $7700.00 | Window Closed / Lapsed |