US3449997A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Timber truss plate-fastener and system
Assignee: CLAUDE R COUCH
•
Filing: 1967-08-07
•
Granted: 1969-06-17
•
Expires: 1987-08-07
Abstract
No abstract record available.
Inventors
- 👤 Claude R Couch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:29
CPC Classifications
F; F16; F16B; F16B43/00; E; E04; E04B; E04B1/00; E04B1/38; E04B1/48; E04B1/49; Y; Y10; Y10S; Y10S411/00; Y10S411/921; Y10T; Y10T403/00; Y10T403/49; Y10T403/4941
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US409546A
Cited
CA697828A
Cited
FR556661A
Cited
GB375875A
Cited
CH314864A
Cited
US2937418A
Cited
US3332464A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-06-16 | 1972-12-16 | 1973-06-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-16 | 1976-12-16 | 1977-06-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-16 | 1980-12-16 | 1981-06-17 | $7700.00 | Window Closed / Lapsed |