Patent US2549229A successfully refreshed from Google Patents.
US2549229A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Holder for double-edged razor blades
Assignee: Individual
•
Filing: 1944-09-11
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Granted: 1951-04-17
•
Expires: 1964-09-11
Abstract
No abstract record available.
Inventors
- 👤 Ottoson Oscar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 05:25
CPC Classifications
B; B26; B26B; B26B5/00; B26B5/006
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1064545A
Cited
US1331243A
Cited
US1352011A
Cited
GB181202A
Cited
US1607160A
Cited
US1616813A
Cited
US1776248A
Cited
US1745103A
Cited
US1871069A
Cited
US2347924A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-04-16 | 1954-10-16 | 1955-04-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-04-16 | 1958-10-16 | 1959-04-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-04-16 | 1962-10-16 | 1963-04-17 | $7700.00 | Window Closed / Lapsed |