Patent US1532040A successfully refreshed from Google Patents.
US1532040A
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US
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Reamer
Assignee: CONRADSON TOOL Corp
•
Filing: 1924-04-19
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Granted: 1925-03-31
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Expires: 1944-04-19
Abstract
No abstract record available.
Inventors
- 👤 Prentice H Conradson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 17:59
CPC Classifications
B; B23; B23D; B23D77/00; B23D77/02; B23D2277/00; B23D2277/24; B23D2277/2421; Y; Y10; Y10S; Y10S408/00; Y10S408/713; Y10S76/00; Y10S76/03; Y10T; Y10T408/00; Y10T408/78
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1928-03-30 | 1928-09-29 | 1929-03-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1932-03-30 | 1932-09-29 | 1933-03-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1936-03-30 | 1936-09-29 | 1937-03-31 | $7700.00 | Window Closed / Lapsed |