US1727293A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Joint for structural-steel columns and girders
Assignee: Individual
•
Filing: 1927-04-01
•
Granted: 1929-09-03
•
Expires: 1947-04-01
Abstract
No abstract record available.
Inventors
- 👤 Larkin John Andrew
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 13:03
CPC Classifications
E; E04; E04B; E04B1/00; E04B1/18; E04B1/24; E04B1/2403; E04B2001/2415; E04B2001/2448; E04B2001/2466; E04B2001/2469; Y; Y10; Y10T; Y10T403/00; Y10T403/34; Y10T403/341; Y10T403/344
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) | 1932-09-02 | 1933-03-04 | 1933-09-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1936-09-02 | 1937-03-04 | 1937-09-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1940-09-02 | 1941-03-04 | 1941-09-03 | $7700.00 | Window Closed / Lapsed |