US1536730A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Auxiliary column and drill head for radial drills
Assignee: Niles Bement Pond Co
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Filing: 1922-03-20
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Granted: 1925-05-05
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Expires: 1942-03-20
Abstract
No abstract record available.
Inventors
- 👤 Willard T Sears
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 20:11
CPC Classifications
B; B23; B23Q; B23Q3/00; B23Q3/155; B23Q3/157; B23Q3/02; B23Q3/10; B23Q3/101; Y; Y10; Y10T; Y10T408/00; Y10T408/36; Y10T408/37; Y10T408/38; Y10T408/3844; Y10T408/91; Y10T408/92; Y10T483/00; Y10T483/17; Y10T483/1733; Y10T483/179; Y10T483/1793
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) | 1928-05-04 | 1928-11-03 | 1929-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1932-05-04 | 1932-11-03 | 1933-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1936-05-04 | 1936-11-03 | 1937-05-05 | $7700.00 | Window Closed / Lapsed |