Patent US4033580A successfully refreshed from Google Patents.
US1493301A
Expired / Lapsed
US
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Power control for boring machines
Assignee: CHANDLER MOTOR CAR Co
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Filing: 1921-07-30
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Granted: 1924-05-06
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Expires: 1941-07-30
Abstract
No abstract record available.
Inventors
- 👤 Hiram L Walker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:04
CPC Classifications
B; B23; B23B; B23B41/00; B23B41/12; Y; Y10; Y10T; Y10T408/00; Y10T408/16; Y10T408/165; Y10T408/17; Y10T408/172; Y10T408/36; Y10T408/375; Y10T408/378; Y10T408/3788; Y10T408/65; Y10T408/675; Y10T408/6757; Y10T408/6771; Y10T408/6774; Y10T74/00; Y10T74/18; Y10T74/18056; Y10T74/18216; Y10T74/18224; Y10T74/19; Y10T74/19219; Y10T74/19377; Y10T74/19414; Y10T74/19419; Y10T74/19423; Y10T74/19428; Y10T74/19433
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) | 1927-05-06 | 1927-11-05 | 1928-05-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1931-05-06 | 1931-11-05 | 1932-05-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1935-05-06 | 1935-11-05 | 1936-05-06 | $7700.00 | Window Closed / Lapsed |