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US2560001A
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US
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Filing chair
Assignee: SCHOLFIELD
•
Filing: 1948-09-10
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Granted: 1951-07-10
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Expires: 1968-09-10
Abstract
No abstract record available.
Inventors
- 👤 Richard P Scholfield
- 👤 Lester R Houghtaling
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:46
CPC Classifications
A; A47; A47C; A47C9/00; A47C9/02; A47C9/022
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US689863A
Cited
US1015799A
Cited
US1265999A
Cited
US1489982A
Cited
US2277929A
Cited
US2412750A
Cited
US2412219A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-07-09 | 1955-01-08 | 1955-07-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-07-09 | 1959-01-08 | 1959-07-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-07-09 | 1963-01-08 | 1963-07-10 | $7700.00 | Window Closed / Lapsed |