US3281168A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Truss connector plate
Assignee: Individual
•
Filing: 1961-11-22
•
Granted: 1966-10-25
•
Expires: 1981-11-22
Abstract
No abstract record available.
Inventors
- 👤 Maurice J Dufficy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 21:15
CPC Classifications
E; E04; E04B; E04B1/00; E04B1/18; E04B1/26; E04B1/2604; E04B2001/2644; Y; Y10; Y10S; Y10S403/00; Y10S403/15; Y10T; Y10T403/00; Y10T403/46
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2632533A
Cited
US2733786A
Cited
BE526204A
Cited
CH313951A
Cited
US2840014A
Cited
US2988854A
Cited
US3043409A
Cited
FR1238646A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-10-24 | 1970-04-25 | 1970-10-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-24 | 1974-04-25 | 1974-10-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-24 | 1978-04-25 | 1978-10-25 | $7700.00 | Window Closed / Lapsed |