US3424419A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Block holder
Assignee: SHELDON K SIEGEL
•
Filing: 1967-08-03
•
Granted: 1969-01-28
•
Expires: 1987-08-03
Abstract
No abstract record available.
Inventors
- 👤 Sheldon K Siegel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 11:46
CPC Classifications
A; A45; A45D; A45D44/00; A45D44/14; Y; Y10; Y10T; Y10T403/00; Y10T403/32; Y10T403/32114; Y10T403/32196; Y10T403/32606; Y10T403/32631; Y10T403/32803
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1934223A
Cited
US2328135A
Cited
US2332504A
Cited
US2260996A
Cited
US2670228A
Cited
US2997264A
Cited
US3198408A
Cited
US3288415A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-01-28 | 1972-07-29 | 1973-01-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-01-28 | 1976-07-29 | 1977-01-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-01-28 | 1980-07-29 | 1981-01-28 | $7700.00 | Window Closed / Lapsed |