US3501847A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wig form
Assignee: JACK C SANFORD
•
Filing: 1967-12-26
•
Granted: 1970-03-24
•
Expires: 1987-12-26
Abstract
No abstract record available.
Inventors
- 👤 Jack C Sanford
- 👤 Jack F Sanford
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 09:10
CPC Classifications
A; A45; A45D; A45D44/00; A45D44/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US568874A
Cited
FR1106202A
Cited
US2951621A
Cited
US3188752A
Cited
US3198408A
Cited
US3298113A
Cited
US3320681A
Cited
US3424419A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-03-23 | 1973-09-22 | 1974-03-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-03-23 | 1977-09-22 | 1978-03-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-03-23 | 1981-09-22 | 1982-03-24 | $7700.00 | Window Closed / Lapsed |