US2592482A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bermuda type metal shingled roof
Assignee: HAYWARD C THOMAS
•
Filing: 1947-03-03
•
Granted: 1952-04-08
•
Expires: 1967-03-03
Abstract
No abstract record available.
Inventors
- 👤 Charles F Sperry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:44
CPC Classifications
E; E04; E04D; E04D3/00; E04D3/40; E04B; E04B7/00; E04B7/20; E04D3/36; E04D3/361; E04D3/362; E04D1/00; E04D1/30; E04D2001/304; E04D2001/305
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US508193A
Cited
US716225A
Cited
US1700138A
Cited
GB278829A
Cited
US1963583A
Cited
US2231007A
Cited
US2192814A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-04-08 | 1955-10-08 | 1956-04-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-04-08 | 1959-10-08 | 1960-04-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-04-08 | 1963-10-08 | 1964-04-08 | $7700.00 | Window Closed / Lapsed |