US1818172A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Railing fitting
Assignee: Individual
•
Filing: 1928-07-28
•
Granted: 1931-08-11
•
Expires: 1948-07-28
Abstract
No abstract record available.
Inventors
- 👤 Thomas G Sutherland
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 05:19
CPC Classifications
E; E04; E04H; E04H17/00; E04H17/14; E04H17/1413; E04H17/009; E04H17/1447; E04H17/1452; E04H17/1473; F; F16; F16B; F16B2200/00; F16B2200/67; Y; Y10; Y10T; Y10T403/00; Y10T403/53; Y10T403/535; Y10T403/57; Y10T403/5761; Y10T403/5766; Y10T403/5781
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) | 1934-08-10 | 1935-02-09 | 1935-08-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1938-08-10 | 1939-02-09 | 1939-08-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1942-08-10 | 1943-02-09 | 1943-08-11 | $7700.00 | Window Closed / Lapsed |