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US2286911A
Expired / Lapsed
US
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Filing apparatus
Assignee: SCHOLFIELD SERVICE Inc
•
Filing: 1941-03-19
•
Granted: 1942-06-16
•
Expires: 1961-03-19
Abstract
No abstract record available.
Inventors
- 👤 Hayes Charles Willard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 07:37
CPC Classifications
B; B42; B42F; B42F17/00; B42F17/28; Y; Y10; Y10S; Y10S402/00; Y10S402/501
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) | 1945-06-15 | 1945-12-15 | 1946-06-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1949-06-15 | 1949-12-15 | 1950-06-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1953-06-15 | 1953-12-15 | 1954-06-16 | $7700.00 | Window Closed / Lapsed |