US2908236A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Roof structure
Assignee: Individual
•
Filing: 1955-12-08
•
Granted: 1959-10-13
•
Expires: 1975-12-08
Abstract
No abstract record available.
Inventors
- 👤 Gustel R Kiewitt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:07
CPC Classifications
E; E04; E04B; E04B7/00; E04B7/08; E04B7/10; E04B7/105
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB191310561A
Cited
GB140073A
Cited
DE456323C
Cited
US2167048A
Cited
GB590294A
Cited
FR1036928A
Cited
US2773458A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-10-12 | 1963-04-13 | 1963-10-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-10-12 | 1967-04-13 | 1967-10-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-10-12 | 1971-04-13 | 1971-10-13 | $7700.00 | Window Closed / Lapsed |