US2819522A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Improved shearing head for hair clipper
Assignee: Sunbeam Corp
•
Filing: 1954-02-25
•
Granted: 1958-01-14
•
Expires: 1974-02-25
Abstract
No abstract record available.
Inventors
- 👤 Jepson Ivar
- 👤 Frank E Cerveny
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 01:13
CPC Classifications
B; B26; B26B; B26B19/00; B26B19/02; B26B19/04; B26B19/06
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1701148A
Cited
US2003332A
Cited
US1980312A
Cited
US2288183A
Cited
US2459412A
Cited
US2668351A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-01-13 | 1961-07-15 | 1962-01-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-01-13 | 1965-07-15 | 1966-01-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-01-13 | 1969-07-15 | 1970-01-14 | $7700.00 | Window Closed / Lapsed |