Patent US2503049A successfully refreshed from Google Patents.
US2503049A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chair
Assignee: Individual
•
Filing: 1945-09-21
•
Granted: 1950-04-04
•
Expires: 1965-09-21
Abstract
No abstract record available.
Inventors
- 👤 Louis T Ivey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 04:52
CPC Classifications
A; A47; A47C; A47C3/00; A47C3/02; A47C3/029; A47C3/03
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US190388A
Cited
US535999A
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US617638A
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US1636271A
Cited
DE504880C
Cited
US905243A
Cited
US1189705A
Cited
GB239108A
Cited
GB442520A
Cited
GB472664A
Cited
US2097541A
Cited
US2185923A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-04-03 | 1953-10-03 | 1954-04-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-04-03 | 1957-10-03 | 1958-04-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-04-03 | 1961-10-03 | 1962-04-04 | $7700.00 | Window Closed / Lapsed |