Patent US2610156A successfully refreshed from Google Patents.
US2769409A
Expired / Lapsed
US
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Construction of dome-shaped roofs
Assignee: Individual
•
Filing: 1952-06-19
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Granted: 1956-11-06
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Expires: 1972-06-19
Abstract
No abstract record available.
Inventors
- 👤 Rutten Walter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 12:54
CPC Classifications
E; E04; E04B; E04B7/00; E04B7/08; E04B7/10; E04B7/102; Y; Y10; Y10T; Y10T292/00; Y10T292/08; Y10T292/0911; Y10T292/0921; Y10T292/0922; Y10T292/0923
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US849294A
Cited
US1096442A
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US1106150A
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US1240182A
Cited
US2176712A
Cited
US2187616A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-11-06 | 1960-05-07 | 1960-11-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-11-06 | 1964-05-07 | 1964-11-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-11-06 | 1968-05-07 | 1968-11-06 | $7700.00 | Window Closed / Lapsed |