US3404476A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sign mounting device and method
Assignee: Delta Plastics Co
•
Filing: 1966-01-05
•
Granted: 1968-10-08
•
Expires: 1986-01-05
Abstract
No abstract record available.
Inventors
- 👤 Jr Robert J Hoffman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 09:01
CPC Classifications
G; G09; G09F; G09F7/00; G09F7/16; Y; Y10; Y10S; Y10S24/00; Y10S24/11; Y10S411/00; Y10S411/955; Y10S411/965
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US434650A
Cited
US1971396A
Cited
US2061811A
Cited
US2100567A
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US2584841A
Cited
US2632479A
Cited
US2835060A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-10-08 | 1972-04-08 | 1972-10-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-10-08 | 1976-04-08 | 1976-10-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-10-08 | 1980-04-08 | 1980-10-08 | $7700.00 | Window Closed / Lapsed |