Patent US2487245A successfully refreshed from Google Patents.
US2487245A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Level
Assignee: Individual
•
Filing: 1947-02-15
•
Granted: 1949-11-08
•
Expires: 1967-02-15
Abstract
No abstract record available.
Inventors
- 👤 Richard T Hubbard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 11:35
CPC Classifications
G; G01; G01C; G01C9/00; G01C9/18; G01C9/24; G01C9/26; G01C9/28
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US915274A
Cited
US1024831A
Cited
US1163203A
Cited
US1141325A
Cited
US1057662A
Cited
US1260229A
Cited
US1630174A
Cited
US2305678A
Cited
US2317715A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-11-07 | 1953-05-09 | 1953-11-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-11-07 | 1957-05-09 | 1957-11-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-11-07 | 1961-05-09 | 1961-11-08 | $7700.00 | Window Closed / Lapsed |