US2994944A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of fabricating metal building frame truss units
Assignee: Individual
•
Filing: 1959-04-06
•
Granted: 1961-08-08
•
Expires: 1979-04-06
Abstract
No abstract record available.
Inventors
- 👤 Prudhon Clark
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 14:44
CPC Classifications
E; E04; E04C; E04C3/00; E04C3/38; E04C3/40; E04B; E04B7/00; E04B7/02; E04B7/022; 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)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-08-07 | 1965-02-06 | 1965-08-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-08-07 | 1969-02-06 | 1969-08-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-08-07 | 1973-02-06 | 1973-08-08 | $7700.00 | Window Closed / Lapsed |