US2927665A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Prefabricated sealed building construction
Assignee: CHICAGO METAL Mfg Co
•
Filing: 1955-02-07
•
Granted: 1960-03-08
•
Expires: 1975-02-07
Abstract
No abstract record available.
Inventors
- 👤 George F Hauf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 13:37
CPC Classifications
E; E04; E04B; E04B1/00; E04B1/62; E04B1/66; E04B1/68; E04B1/6803; E04B1/74; E04B1/82; E04B1/8218; E04H; E04H1/00; E04H1/12; E04H1/14; E04B2001/8263; E04B1/84; E04B2001/8423; E04B2001/8433; E04B2001/8442; E04B2001/8447
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US874939A
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US1059747A
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US2347756A
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US2681714A
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US2451396A
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US2654449A
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US2667242A
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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) | 1963-03-08 | 1963-09-07 | 1964-03-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-03-08 | 1967-09-07 | 1968-03-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-03-08 | 1971-09-07 | 1972-03-08 | $7700.00 | Window Closed / Lapsed |