US2862584A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Expansible wall structure
Assignee: Individual
•
Filing: 1954-10-04
•
Granted: 1958-12-02
•
Expires: 1974-10-04
Abstract
No abstract record available.
Inventors
- 👤 Francis E Allen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 23:08
CPC Classifications
E; E04; E04B; E04B1/00; E04B1/62; E04B1/66; E04B1/68; E04C; E04C2/00; E04C2/30; E04C2/34
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1891189A
Cited
US1883834A
Cited
US2324654A
Cited
US2324710A
Cited
US2703559A
Cited
US2656902A
Cited
US2718287A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-12-01 | 1962-06-02 | 1962-12-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-12-01 | 1966-06-02 | 1966-12-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-12-01 | 1970-06-02 | 1970-12-02 | $7700.00 | Window Closed / Lapsed |