US3425725A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Corner construction
Assignee: Marshall Aluminum Products Inc
•
Filing: 1967-12-11
•
Granted: 1969-02-04
•
Expires: 1987-12-11
Abstract
No abstract record available.
Inventors
- 👤 Martin D Givot
- 👤 Marshall J Stuart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 03:59
CPC Classifications
E; E06; E06B; E06B3/00; E06B3/96; E06B3/964; E06B3/968; E06B3/9684; F; F16; F16B; F16B2200/00; F16B2200/67; Y; Y10; Y10S; Y10S411/00; Y10S411/904; Y10S411/907; Y10S411/955; Y10S411/965; Y10S411/97
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2649126A
Cited
US2853113A
Cited
US2844233A
Cited
US3110338A
Cited
US2921766A
Cited
US3084211A
Cited
US3155771A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-02-04 | 1972-08-05 | 1973-02-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-02-04 | 1976-08-05 | 1977-02-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-02-04 | 1980-08-05 | 1981-02-04 | $7700.00 | Window Closed / Lapsed |