Patent US1796243A successfully refreshed from Google Patents.
US1796243A
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US
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Assignee: Individual
•
Filing: 1930-05-23
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Granted: 1931-03-10
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Expires: 1950-05-23
Abstract
No abstract record available.
Inventors
- 👤 Sylvia E Coughlin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:50
CPC Classifications
G; G09; G09B; G09B29/00; G09B29/10; Y; Y10; Y10S; Y10S40/00; Y10S40/904; Y10T; Y10T24/00; Y10T24/14; Y10T24/149; Y10T24/34; Y10T24/3427; Y10T24/3439; Y10T24/344; Y10T24/3444; Y10T24/44; Y10T24/44248; Y10T24/44641; Y10T24/4465; Y10T24/44744; Y10T24/44752; Y10T24/44769; Y10T24/44872
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) | 1934-03-09 | 1934-09-08 | 1935-03-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1938-03-09 | 1938-09-08 | 1939-03-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1942-03-09 | 1942-09-08 | 1943-03-10 | $7700.00 | Window Closed / Lapsed |