US2871523A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Storm door vent and automatic closure therefor
Assignee: ROCKFORD FACTORIES Inc
•
Filing: 1954-11-22
•
Granted: 1959-02-03
•
Expires: 1974-11-22
Abstract
No abstract record available.
Inventors
- 👤 Negoro Kaiji
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 21:20
CPC Classifications
E; E06; E06B; E06B5/00; E06B5/003; F; F16; F16K; F16K15/00; F16K15/14; F16K15/16; F16K15/161; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7837; Y10T137/7898; Y10T137/7903
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US181272A
Cited
US1064951A
Cited
US1397739A
Cited
US2139991A
Cited
US2224494A
Cited
US2265596A
Cited
US2774116A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-02-02 | 1962-08-04 | 1963-02-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-02-02 | 1966-08-04 | 1967-02-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-02-02 | 1970-08-04 | 1971-02-03 | $7700.00 | Window Closed / Lapsed |