Patent US3137939A successfully refreshed from Google Patents.
US3137939A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Safety razor marker
Assignee: Individual
•
Filing: 1962-06-06
•
Granted: 1964-06-23
•
Expires: 1982-06-06
Abstract
No abstract record available.
Inventors
- 👤 George A Waldeck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 14:41
CPC Classifications
B; B26; B26B; B26B21/00; B26B21/40
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
DE233445C
Cited
US951036A
Cited
US1966193A
Cited
FR762828A
Cited
US2086426A
Cited
US2150337A
Cited
US2207269A
Cited
US2326774A
Cited
US2269711A
Cited
US2680290A
Cited
US2645009A
Cited
US2750664A
Cited
US2812575A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-06-23 | 1967-12-23 | 1968-06-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-23 | 1971-12-23 | 1972-06-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-23 | 1975-12-23 | 1976-06-23 | $7700.00 | Window Closed / Lapsed |