US2598765A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Surfacing tool
Assignee: Individual
•
Filing: 1946-04-08
•
Granted: 1952-06-03
•
Expires: 1966-04-08
Abstract
No abstract record available.
Inventors
- 👤 Frederick R Dewey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 06:04
CPC Classifications
B; B23; B23C; B23C3/00; B23C3/02; B23C3/05; Y; Y10; Y10T; Y10T29/00; Y10T29/44; Y10T29/49; Y10T29/49405; Y10T409/00; Y10T409/30; Y10T409/306216; Y10T409/306384
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US692459A
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US753747A
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US1283467A
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US1843181A
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US1904941A
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US1851971A
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US1856002A
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US1905819A
Cited
US2082999A
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US2153093A
Cited
US2234710A
Cited
US2219063A
Cited
US2314775A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-06-03 | 1955-12-03 | 1956-06-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-06-03 | 1959-12-03 | 1960-06-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-06-03 | 1963-12-03 | 1964-06-03 | $7700.00 | Window Closed / Lapsed |