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US2744334A
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Assignee: Individual
•
Filing: 1952-06-09
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Granted: 1956-05-08
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Expires: 1972-06-09
Abstract
No abstract record available.
Inventors
- 👤 Stephen C Jondole
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 15:09
CPC Classifications
E; E04; E04G; E04G21/00; E04G21/24; E04G21/26; E04G21/14; E04G21/16; E04G21/18; E04G21/1891
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US807957A
Cited
US1380485A
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US1586946A
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US1549671A
Cited
US1989141A
Cited
US2139893A
Cited
US2243468A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-05-08 | 1959-11-07 | 1960-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-05-08 | 1963-11-07 | 1964-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-05-08 | 1967-11-07 | 1968-05-08 | $7700.00 | Window Closed / Lapsed |