Patent US2637110A successfully refreshed from Google Patents.
US2637110A
Expired / Lapsed
US
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Drafting instrument
Assignee: Individual
•
Filing: 1950-06-23
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Granted: 1953-05-05
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Expires: 1970-06-23
Abstract
No abstract record available.
Inventors
- 👤 Harris S Gilbertson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:24
CPC Classifications
B; B43; B43L; B43L7/00; B43L7/005; B43L13/00; B43L13/001; B43L13/002; B43L7/027; B43L9/00; B43L9/007; G; G01; G01B; G01B3/00; G01B3/56; G01B3/563; G01B3/566
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US371741A
Cited
US387966A
Cited
GB190407653A
Cited
US960196A
Cited
CH84466A
Cited
US1667191A
Cited
GB367211A
Cited
CH245102A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-05-04 | 1956-11-03 | 1957-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-05-04 | 1960-11-03 | 1961-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-05-04 | 1964-11-03 | 1965-05-05 | $7700.00 | Window Closed / Lapsed |