US2461648A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fastening
Assignee: UNITED STEEL FABRICATORS Inc
•
Filing: 1945-07-23
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Granted: 1949-02-15
•
Expires: 1965-07-23
Abstract
No abstract record available.
Inventors
- 👤 Macleod Donald Keith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 05:22
CPC Classifications
E; E04; E04B; E04B1/00; E04B1/38; E04B1/61; E04B1/6108; E04B1/612; E04B1/6125; E04B1/6141; E04D; E04D3/00; E04D3/36; E04D3/365; F; F16; F16B; F16B5/00; F16B5/0004; F16B5/0032; F16B5/0044; F16B5/0048
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB134911A
Cited
US1315568A
Cited
US1141250A
Cited
US1261598A
Cited
US1970965A
Cited
US2042179A
Cited
US2112178A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-02-15 | 1952-08-16 | 1953-02-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-02-15 | 1956-08-16 | 1957-02-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-02-15 | 1960-08-16 | 1961-02-15 | $7700.00 | Window Closed / Lapsed |