US2543879A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Paddle
Assignee: FRANKLIN J ESSNER
•
Filing: 1948-02-27
•
Granted: 1951-03-06
•
Expires: 1968-02-27
Abstract
No abstract record available.
Inventors
- 👤 Samuel G Stuckey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 07:07
CPC Classifications
B; B63; B63H; B63H16/00; B63H16/04; Y; Y10; Y10S; Y10S428/00; Y10S428/913
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US531872A
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US588220A
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GB189414951A
Cited
US684868A
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GB191008290A
Cited
US1160023A
Cited
GB192276A
Cited
US1740560A
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FR790895A
Cited
US2306939A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-03-05 | 1954-09-04 | 1955-03-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-03-05 | 1958-09-04 | 1959-03-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-03-05 | 1962-09-04 | 1963-03-06 | $7700.00 | Window Closed / Lapsed |