Patent US2419648A successfully refreshed from Google Patents.
US2419648A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Closure
Assignee: Individual
•
Filing: 1943-03-09
•
Granted: 1947-04-29
•
Expires: 1963-03-09
Abstract
No abstract record available.
Inventors
- 👤 Lamont B Koontz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 10:21
CPC Classifications
E; E06; E06B; E06B3/00; E06B3/54; E06B3/5454; G; G02; G02B; G02B7/00; G02B7/007; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49863; Y10T29/49865
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US349424A
Cited
US632909A
Cited
US935190A
Cited
US943370A
Cited
US1269422A
Cited
US1838781A
Cited
US1918958A
Cited
US2003625A
Cited
US1995819A
Cited
US2097850A
Cited
US2180992A
Cited
US2138374A
Cited
US2335376A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-04-28 | 1950-10-28 | 1951-04-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-04-28 | 1954-10-28 | 1955-04-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-04-28 | 1958-10-28 | 1959-04-29 | $7700.00 | Window Closed / Lapsed |