US2175983A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of forming a building structure
Assignee: ELLEN K WALSH
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Filing: 1937-11-26
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Granted: 1939-10-10
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Expires: 1957-11-26
Abstract
No abstract record available.
Inventors
- 👤 John L Walsh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 09:16
CPC Classifications
E; E04; E04B; E04B1/00; E04B1/18; E04B1/19; E04B2001/1924; E04B2001/1927; E04B2001/1933; E04B2001/1951; E04B2001/1981; E04B2001/1984; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49616; Y10T29/49623; Y10T29/49625
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) | 1942-10-09 | 1943-04-10 | 1943-10-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1946-10-09 | 1947-04-10 | 1947-10-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1950-10-09 | 1951-04-10 | 1951-10-10 | $7700.00 | Window Closed / Lapsed |