US2476386A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Floor unit
Assignee: Individual
•
Filing: 1945-03-23
•
Granted: 1949-07-19
•
Expires: 1965-03-23
Abstract
No abstract record available.
Inventors
- 👤 Augusta L Roberts
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:45
CPC Classifications
E; E04; E04C; E04C3/00; E04C3/02; E04C3/04; E04C3/08; E04C2003/0486; E04C2003/0491
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB236976A
Cited
FR741892A
Cited
US1672887A
Cited
US1911018A
Cited
US1909877A
Cited
US2000885A
Cited
US1988388A
Cited
US2114901A
Cited
US2053487A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-07-18 | 1953-01-17 | 1953-07-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-07-18 | 1957-01-17 | 1957-07-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-07-18 | 1961-01-17 | 1961-07-19 | $7700.00 | Window Closed / Lapsed |