Patent US2336235A successfully refreshed from Google Patents.
US2336235A
Expired / Lapsed
US
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Structural unit
Assignee: Individual
•
Filing: 1940-04-22
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Granted: 1943-12-07
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Expires: 1960-04-22
Abstract
No abstract record available.
Inventors
- 👤 Albert C Fischer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 23:48
CPC Classifications
E; E04; E04F; E04F15/00; E04F15/02; E04F15/10; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24752; Y10T428/31504; Y10T428/31826; Y10T428/31841
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) | 1946-12-06 | 1947-06-07 | 1947-12-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1950-12-06 | 1951-06-07 | 1951-12-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1954-12-06 | 1955-06-07 | 1955-12-07 | $7700.00 | Window Closed / Lapsed |