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 04:31
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
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References Cited (Backward Citations)
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US632909A
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US935190A
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US943370A
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US1269422A
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US1838781A
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US1918958A
Cited
US2003625A
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US1995819A
Cited
US2097850A
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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 |