US3495369A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Compound curved building elements attached end to end
Assignee: Individual
•
Filing: 1967-04-25
•
Granted: 1970-02-17
•
Expires: 1987-04-25
Abstract
No abstract record available.
Inventors
- 👤 Serge Laroche
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:46
CPC Classifications
E; E04; E04C; E04C2/00; E04C2/30; E04C2/32; E04C2/326; E04B; E04B1/00; E04B1/34; E04B7/00; E04B7/08; E04B7/10; E04B7/107; E04C3/00; E04C3/38
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
CA713247A
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DE399658C
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BE503705A
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US1115588A
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US1545456A
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US2181938A
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US2574241A
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US2870793A
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US2874812A
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DE1052660B
Cited
FR1254493A
Cited
US3039414A
Cited
US3344564A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-02-16 | 1973-08-18 | 1974-02-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-02-16 | 1977-08-18 | 1978-02-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-02-16 | 1981-08-18 | 1982-02-17 | $7700.00 | Window Closed / Lapsed |