US2620840A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Right angle drilling fixture
Assignee: Individual
•
Filing: 1948-12-24
•
Granted: 1952-12-09
•
Expires: 1968-12-24
Abstract
No abstract record available.
Inventors
- 👤 Albert J Schafer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 14:59
CPC Classifications
B; B27; B27C; B27C3/00; B27C3/08; Y; Y10; Y10T; Y10T408/00; Y10T408/65; Y10T408/94; Y10T408/95; Y10T74/00; Y10T74/19; Y10T74/19642; Y10T74/1966; Y10T74/19665
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US417116A
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US536116A
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US647311A
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US788888A
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US793959A
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US849201A
Cited
US960097A
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US1343180A
Cited
US1476386A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-12-09 | 1956-06-09 | 1956-12-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-12-09 | 1960-06-09 | 1960-12-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-12-09 | 1964-06-09 | 1964-12-09 | $7700.00 | Window Closed / Lapsed |