US2712974A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multiple-purpose door structure
Assignee: REVELVODOR INTERNAT Inc
•
Filing: 1950-12-16
•
Granted: 1955-07-12
•
Expires: 1970-12-16
Abstract
No abstract record available.
Inventors
- 👤 Renna Michele
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 09:32
CPC Classifications
E; E06; E06B; E06B7/00; E06B7/28
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US750193A
Cited
US1615183A
Cited
US1626157A
Cited
US1666646A
Cited
US2039065A
Cited
GB462611A
Cited
US2230975A
Cited
US2564485A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-07-11 | 1959-01-10 | 1959-07-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-07-11 | 1963-01-10 | 1963-07-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-07-11 | 1967-01-10 | 1967-07-12 | $7700.00 | Window Closed / Lapsed |