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Patent US1804308A successfully refreshed from Google Patents.
US1804308A
Expired / Lapsed
US
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Assignee: Individual
•
Filing: 1930-12-04
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Granted: 1931-05-05
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Expires: 1950-12-04
Abstract
No abstract record available.
Inventors
- 👤 John C Bollinger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 17:42
CPC Classifications
A; A41; A41F; A41F19/00; A41F19/005; Y; Y10; Y10T; Y10T24/00; Y10T24/31; Y10T24/314; Y10T24/316; Y10T24/44; Y10T24/44291; Y10T24/44496; Y10T24/44513; Y10T24/44547
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) | 1934-05-04 | 1934-11-03 | 1935-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1938-05-04 | 1938-11-03 | 1939-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1942-05-04 | 1942-11-03 | 1943-05-05 | $7700.00 | Window Closed / Lapsed |