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Patent US1937224A successfully refreshed from Google Patents.
US1937224A
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Assignee: Individual
•
Filing: 1931-01-26
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Granted: 1933-11-28
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Expires: 1951-01-26
Abstract
No abstract record available.
Inventors
- 👤 Raymond K Gray
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 21:45
CPC Classifications
E; E05; E05B; E05B9/00; E05B9/08; E05B9/084; E05B9/086; E05B15/00; E05B15/04; E05B2015/0451; E05B2015/0486; E05B2015/0489; Y; Y10; Y10S; Y10S70/00; Y10S70/32; Y10S70/40; Y10T; Y10T292/00; Y10T292/08; Y10T292/096; Y10T292/1014; Y10T292/1022; Y10T292/1024; Y10T70/00; Y10T70/50; Y10T70/5093; Y10T70/5097; Y10T70/5111; Y10T70/5128; Y10T70/5133; Y10T70/70; Y10T70/7441; Y10T70/7486; Y10T70/7508; Y10T70/7559; Y10T70/7588; Y10T70/7593; Y10T70/7599
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) | 1936-11-27 | 1937-05-29 | 1937-11-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1940-11-27 | 1941-05-29 | 1941-11-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1944-11-27 | 1945-05-29 | 1945-11-28 | $7700.00 | Window Closed / Lapsed |