Patent US4966597A successfully refreshed from Google Patents.
US2136473A
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Assignee: JESSE B HAWLEY
•
Filing: 1935-02-04
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Granted: 1938-11-15
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Expires: 1955-02-04
Abstract
No abstract record available.
Inventors
- 👤 Edward C Sloan
- 👤 Gustave A Sporre
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:27
CPC Classifications
A; A42; A42B; A42B1/00; A42B1/02; A42C; A42C1/00; A42C1/04; Y; Y10; Y10T; Y10T24/00; Y10T24/21; Y10T24/2143; Y10T24/2155
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) | 1941-11-14 | 1942-05-16 | 1942-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1945-11-14 | 1946-05-16 | 1946-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1949-11-14 | 1950-05-16 | 1950-11-15 | $7700.00 | Window Closed / Lapsed |