US2491605A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chuck
Assignee: Individual
•
Filing: 1946-07-26
•
Granted: 1949-12-20
•
Expires: 1966-07-26
Abstract
No abstract record available.
Inventors
- 👤 Windsor N Chittenden
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:26
CPC Classifications
B; B23; B23B; B23B31/00; B23B31/02; B23B31/10; B23B31/107; B23B31/1071; Y; Y10; Y10T; Y10T279/00; Y10T279/17; Y10T279/17411; Y10T279/17487; Y10T279/17495; Y10T279/17666; Y10T279/17692; Y10T279/17743; Y10T279/17752; Y10T279/17761; Y10T279/17811
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1305257A
Cited
US881075A
Cited
GB191301732A
Cited
US1449440A
Cited
US1278427A
Cited
US1636421A
Cited
US1863108A
Cited
US1973942A
Cited
US2272185A
Cited
US2463253A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-12-19 | 1953-06-20 | 1953-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-12-19 | 1957-06-20 | 1957-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-12-19 | 1961-06-20 | 1961-12-20 | $7700.00 | Window Closed / Lapsed |