US2564485A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Revolving door and cabinet
Assignee: RENNA
•
Filing: 1947-07-24
•
Granted: 1951-08-14
•
Expires: 1967-07-24
Abstract
No abstract record available.
Inventors
- 👤 William J Kurstin
- 👤 Vito M Renna
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 09:14
CPC Classifications
E; E06; E06B; E06B7/00; E06B7/28; E06B7/34; E06B3/00; E06B3/90; E05; E05Y; E05Y2900/00; E05Y2900/10; E05Y2900/13; E05Y2900/132
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
DE111100C
Cited
DE342429C
Cited
US842440A
Cited
US1123638A
Cited
US1214676A
Cited
US1666646A
Cited
GB316961A
Cited
GB411386A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-08-13 | 1955-02-12 | 1955-08-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-08-13 | 1959-02-12 | 1959-08-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-08-13 | 1963-02-12 | 1963-08-14 | $7700.00 | Window Closed / Lapsed |