Patent US3290778A successfully refreshed from Google Patents.
US3290778A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Razor guard
Assignee: Individual
•
Filing: 1964-05-22
•
Granted: 1966-12-13
•
Expires: 1984-05-22
Abstract
No abstract record available.
Inventors
- 👤 Alva J Hickerson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 12:47
CPC Classifications
B; B26; B26B; B26B29/00
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US311466A
Cited
CA477564A
Cited
US875274A
Cited
US1957065A
Cited
US2320807A
Cited
CH234185A
Cited
US2372280A
Cited
US2695448A
Cited
US3172202A
Cited
US3177582A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-12-12 | 1970-06-13 | 1970-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-12 | 1974-06-13 | 1974-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-12 | 1978-06-13 | 1978-12-13 | $7700.00 | Window Closed / Lapsed |