US2548844A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adjustable post
Assignee: SUMMIT STEEL PRODUCTS Inc
•
Filing: 1947-03-21
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Granted: 1951-04-10
•
Expires: 1967-03-21
Abstract
No abstract record available.
Inventors
- 👤 Clarence E Myers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 15:34
CPC Classifications
B; B66; B66F; B66F3/00; B66F3/08; E; E04; E04G; E04G25/00; E04G25/04; E04G25/06; E04G25/065; Y; Y10; Y10T; Y10T403/00; Y10T403/32; Y10T403/32254; Y10T403/32426; Y10T403/32442; Y10T403/32451
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US161974A
Cited
US1324058A
Cited
FR347010A
Cited
FR370260A
Cited
US946879A
Cited
US1051144A
Cited
FR483843A
Cited
CH162231A
Cited
US2181163A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-04-09 | 1954-10-09 | 1955-04-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-04-09 | 1958-10-09 | 1959-04-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-04-09 | 1962-10-09 | 1963-04-10 | $7700.00 | Window Closed / Lapsed |