US2915791A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Prefabricated sealed building construction
Assignee: CHICAGO METAL Mfg Co
•
Filing: 1955-06-07
•
Granted: 1959-12-08
•
Expires: 1975-06-07
Abstract
No abstract record available.
Inventors
- 👤 George F Hauf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:30
CPC Classifications
E; E04; E04B; E04B1/00; E04B1/62; E04B1/74; E04B1/82; E04B1/8218; E04B1/38; E04B1/61; E04B1/6108; E04B1/612; E04B1/6166; E04B1/617; E04B1/84; E04B2001/8423; E04B2001/8433; E04B2001/8452
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1730464A
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US1908661A
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US2300743A
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US2351209A
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US2394594A
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US2585082A
Cited
US2651391A
Cited
US2589633A
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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) | 1962-12-07 | 1963-06-08 | 1963-12-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-12-07 | 1967-06-08 | 1967-12-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-12-07 | 1971-06-08 | 1971-12-08 | $7700.00 | Window Closed / Lapsed |