Patent US2453008A successfully refreshed from Google Patents.
US2453008A
Expired / Lapsed
US
⏱️ 0.0 years remaining
fowler
Assignee: —
•
Filing: —
•
Granted: 1948-11-02
•
Expires: 1965-11-02
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 15:45
CPC Classifications
B; B02; B02C; B02C13/00; B02C13/26; B02C13/286
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1307761A
Cited
US781511A
Cited
US1271773A
Cited
US1396108A
Cited
US1449510A
Cited
US1925394A
Cited
US1925618A
Cited
US2005561A
Cited
US2042946A
Cited
US2150984A
Cited
DE671813C
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-11-02 | 1952-05-03 | 1952-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-11-02 | 1956-05-03 | 1956-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-11-02 | 1960-05-03 | 1960-11-02 | $7700.00 | Window Closed / Lapsed |