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US3016630A
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Assignee: Individual
•
Filing: 1958-05-01
•
Granted: 1962-01-16
•
Expires: 1978-05-01
Abstract
No abstract record available.
Inventors
- 👤 Jr Robert D Twiggs
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 12:02
CPC Classifications
A; A43; A43B; A43B3/00; A43B3/12; A43B3/122
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
CH75964A
Cited
US1758342A
Cited
US2368314A
Cited
US2367232A
Cited
US2526940A
Cited
US2588061A
Cited
US2761224A
Cited
US2760279A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-01-15 | 1965-07-17 | 1966-01-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-01-15 | 1969-07-17 | 1970-01-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-01-15 | 1973-07-17 | 1974-01-16 | $7700.00 | Window Closed / Lapsed |