US2240795A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Drilling machine
Assignee: National Supply Co
•
Filing: 1938-01-21
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Granted: 1941-05-06
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Expires: 1958-01-21
Abstract
No abstract record available.
Inventors
- 👤 Jr John S Morgan
- 👤 Frank L Gillett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:57
CPC Classifications
B; B23; B23Q; B23Q5/00; B23Q5/22; B23Q5/34; B23Q5/38; B23Q5/40; B23Q5/402; Y; Y10; Y10T; Y10T408/00; Y10T408/16; Y10T408/17; Y10T408/44; Y10T408/45; Y10T408/455; Y10T408/65; Y10T408/675; Y10T408/6793; Y10T409/00; Y10T409/30; Y10T409/306664; Y10T409/306776; Y10T74/00; Y10T74/18; Y10T74/18568; Y10T74/18576; Y10T74/18648; Y10T82/00; Y10T82/25; Y10T82/2531
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) | 1944-05-05 | 1944-11-04 | 1945-05-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1948-05-05 | 1948-11-04 | 1949-05-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1952-05-05 | 1952-11-04 | 1953-05-06 | $7700.00 | Window Closed / Lapsed |