Patent US2597902A successfully refreshed from Google Patents.
US2597902A
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Assignee: Individual
•
Filing: 1949-09-09
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Granted: 1952-05-27
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Expires: 1969-09-09
Abstract
No abstract record available.
Inventors
- 👤 Stanley J Roketa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:30
CPC Classifications
E; E06; E06C; E06C7/00; E06C7/48
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US543513A
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US799782A
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US1007347A
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US972001A
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US1015123A
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US1004284A
Cited
US1447092A
Cited
US1471848A
Cited
US1948577A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-05-27 | 1955-11-26 | 1956-05-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-05-27 | 1959-11-26 | 1960-05-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-05-27 | 1963-11-26 | 1964-05-27 | $7700.00 | Window Closed / Lapsed |