US2874652A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Roof construction and tile therefor
Assignee: Acme Steel Co
•
Filing: 1955-11-02
•
Granted: 1959-02-24
•
Expires: 1975-11-02
Abstract
No abstract record available.
Inventors
- 👤 Allen B Wilson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 15:05
CPC Classifications
E; E04; E04D; E04D3/00; E04D3/35; E04D3/351; E04D11/00; E04D11/02; E04D13/00; E04D13/16; E04D13/1606; E04D13/1643; E04D3/358
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1919677A
Cited
US1797706A
Cited
US1965972A
Cited
US1992509A
Cited
US1959326A
Cited
US2059664A
Cited
GB481396A
Cited
US2305804A
Cited
US2388968A
Cited
US2739677A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-02-23 | 1962-08-25 | 1963-02-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-02-23 | 1966-08-25 | 1967-02-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-02-23 | 1970-08-25 | 1971-02-24 | $7700.00 | Window Closed / Lapsed |