Patent US2476401A successfully refreshed from Google Patents.
US2476401A
Expired / Lapsed
US
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Pitch roof platform
Assignee: Individual
•
Filing: 1947-11-18
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Granted: 1949-07-19
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Expires: 1967-11-18
Abstract
No abstract record available.
Inventors
- 👤 James F Campion
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 09:23
CPC Classifications
E; E06; E06C; E06C1/00; E06C1/02; E06C1/34; E06C1/345; E04; E04G; E04G3/00; E04G3/24; E04G3/26; E06C7/00; E06C7/48; E06C7/488
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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 |