US2448294A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Breakable building form
Assignee: —
•
Filing: —
•
Granted: 1948-08-31
•
Expires: 1965-08-31
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:05
CPC Classifications
B; B64; B64D; B64D37/00; B64D37/32
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US415251A
Cited
US791774A
Cited
US1002119A
Cited
US1509346A
Cited
US2217734A
Cited
US2360899A
Cited
US2343292A
Cited
US2364710A
Cited
US2374420A
Cited
US2369892A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-08-31 | 1952-03-01 | 1952-08-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-08-31 | 1956-03-01 | 1956-08-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-08-31 | 1960-03-01 | 1960-08-31 | $7700.00 | Window Closed / Lapsed |