US3456413A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Structural element
Assignee: Individual
•
Filing: 1966-12-01
•
Granted: 1969-07-22
•
Expires: 1986-12-01
Abstract
No abstract record available.
Inventors
- 👤 Artur Fischer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 04:10
CPC Classifications
A; A63; A63H; A63H33/00; A63H33/04; A63H33/06; A63H33/08; A63H33/082; A63H33/084
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2205730A
Cited
US2392552A
Cited
US2565823A
Cited
FR54584E
Cited
GB795078A
Cited
US3076286A
Cited
CH358573A
Cited
US3148477A
Cited
FR1321609A
Cited
GB1000616A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-07-21 | 1973-01-20 | 1973-07-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-07-21 | 1977-01-20 | 1977-07-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-07-21 | 1981-01-20 | 1981-07-22 | $7700.00 | Window Closed / Lapsed |