US3793428A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Building construction
Assignee: Individual
•
Filing: 1971-10-29
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Granted: 1974-02-19
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Expires: 1991-10-29
Abstract
Abstract A method of constructing a standardized room module capable of being assembled with other units of the same or varying design to erect a multistory apartment building. A box-like form is partially enclosed by a gridwork of metal reinforcement and the assembly is sprayed with concrete to provide a relatively lightweight, transportable module which later can be substantially completed ready for transport to the building site.
Inventors
- 👤 H Gordon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 19:07
CPC Classifications
B; B28; B28B; B28B7/00; B28B7/22; Y; Y10; Y10S; Y10S264/00; Y10S264/72; Y10S425/00; Y10S425/121
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-02-18 | 1977-08-20 | 1978-02-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-02-18 | 1981-08-20 | 1982-02-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-02-18 | 1985-08-20 | 1986-02-19 | $7700.00 | Window Closed / Lapsed |