Patent US2137358A successfully refreshed from Google Patents.
US2137358A
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Assignee: Niles Bement Pond Co
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Filing: 1936-09-22
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Granted: 1938-11-22
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Expires: 1956-09-22
Abstract
No abstract record available.
Inventors
- 👤 Robert D Shaw
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 19:10
CPC Classifications
B; B23; B23B; B23B25/00; B23B25/02; Y; Y10; Y10S; Y10S29/00; Y10S29/046; Y10S29/052; Y10S82/00; Y10S82/901; Y10T; Y10T29/00; Y10T29/49; Y10T29/49995; Y10T29/49996; Y10T407/00; Y10T407/11; Y10T407/118; Y10T82/00; Y10T82/25; Y10T82/2572
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) | 1941-11-21 | 1942-05-23 | 1942-11-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1945-11-21 | 1946-05-23 | 1946-11-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1949-11-21 | 1950-05-23 | 1950-11-22 | $7700.00 | Window Closed / Lapsed |