US3081780A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of electrically fabricating a hair piece
Assignee: Individual
•
Filing: 1961-11-17
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Granted: 1963-03-19
•
Expires: 1981-11-17
Abstract
No abstract record available.
Inventors
- 👤 Leonard L Cramer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 06:39
CPC Classifications
A; A41; A41G; A41G3/00; A41G3/0075
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
87 words
IN A METHOD OF FABRICATING A HAIR PIECE, THE STEPS OF BINDING A PLURALITY OF HAIR-LIKE FIBERS AT ONE END TO FORM A HANK, ELECTRICALLY CHARGING THE FIBERS TO CAUSE THEIR FREE END PORTIONS TO REPEL EACH OTHER AND TO DIVERGE, ADHESIVELY SECURING A CONCAVE FLEXIBLE SUPPORT HAVING A NEUTRAL CHARGE TO THE DIVERGING FIBER ENDS, UNBINDING THE FIBERS AFTER THEY HAVE BECOME FASTENED TO THE FLEXIBLE SUPPORT, AND REVERSING THE FLEXIBLE SUPPORT SO THAT THE FIBERS EXTEND DIVERGENTLY OUTWARDLY FROM A CONVEX SURFACE OF THE SUPPORT.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-03-18 | 1966-09-17 | 1967-03-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-03-18 | 1970-09-17 | 1971-03-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-03-18 | 1974-09-17 | 1975-03-19 | $7700.00 | Window Closed / Lapsed |