Patent US1665774A successfully refreshed from Google Patents.
US1665774A
Expired / Lapsed
US
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Shingle and shingle construction
Assignee: Individual
•
Filing: 1927-09-24
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Granted: 1928-04-10
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Expires: 1947-09-24
Abstract
No abstract record available.
Inventors
- 👤 George E Conway
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:12
CPC Classifications
E; E04; E04D; E04D1/00; E04D1/28; E04D1/29; E04D1/2907; E04D1/2942
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1931-04-10 | 1931-10-10 | 1932-04-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1935-04-10 | 1935-10-10 | 1936-04-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1939-04-10 | 1939-10-10 | 1940-04-10 | $7700.00 | Window Closed / Lapsed |