US3038276A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Building construction
Assignee: Individual
•
Filing: 1956-07-11
•
Granted: 1962-06-12
•
Expires: 1976-07-11
Abstract
No abstract record available.
Inventors
- 👤 Charles L Butler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:27
CPC Classifications
E; E04; E04F; E04F13/00; E04F13/07; E04F13/08; E04F13/0801; E04F13/0803; E04F13/02; E04F13/04; E04F13/06; E04F13/081; E04F13/0821; E04F2013/063
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1938474A
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US2041773A
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US2351525A
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US2368620A
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US2307898A
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US2352002A
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US2338191A
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US2540305A
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US2862264A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-06-11 | 1965-12-11 | 1966-06-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-06-11 | 1969-12-11 | 1970-06-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-06-11 | 1973-12-11 | 1974-06-12 | $7700.00 | Window Closed / Lapsed |