Patent US1908887A successfully refreshed from Google Patents.
US1908887A
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Method of making composite reamers
Assignee: Whitman & Barnes Inc
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Filing: 1930-04-05
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Granted: 1933-05-16
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Expires: 1950-04-05
Abstract
No abstract record available.
Inventors
- 👤 Walter R Breeler
- 👤 Ferris T Harrington
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 16:11
CPC Classifications
B; B23; B23P; B23P15/00; B23P15/28; B23P15/46; B23D; B23D77/00; B23D77/02; Y; Y10; Y10S; Y10S408/00; Y10S408/713; Y10S76/00; Y10S76/05; Y10T; Y10T407/00; Y10T407/19; Y10T407/1906; Y10T407/26; Y10T408/00; Y10T408/78; Y10T428/00; Y10T428/12; Y10T428/12229; Y10T428/12236
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) | 1936-05-15 | 1936-11-14 | 1937-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1940-05-15 | 1940-11-14 | 1941-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1944-05-15 | 1944-11-14 | 1945-05-16 | $7700.00 | Window Closed / Lapsed |