US2684082A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Surface fitting
Assignee: HAZEL BLETCHER SKINNER
•
Filing: 1950-03-09
•
Granted: 1954-07-20
•
Expires: 1970-03-09
Abstract
No abstract record available.
Inventors
- 👤 Bletcher Ralph Edwin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:28
CPC Classifications
E; E03; E03C; E03C1/00; E03C1/02; E03C1/04; E03C1/042; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/87571
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1699767A
Cited
US1754217A
Cited
US859733A
Cited
US1233170A
Cited
US1730455A
Cited
US1743804A
Cited
US2007331A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-07-19 | 1958-01-18 | 1958-07-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-07-19 | 1962-01-18 | 1962-07-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-07-19 | 1966-01-18 | 1966-07-20 | $7700.00 | Window Closed / Lapsed |