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US2492599A
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Assignee: Individual
•
Filing: 1946-04-25
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Granted: 1949-12-27
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Expires: 1966-04-25
Abstract
No abstract record available.
Inventors
- 👤 Helen E Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 05:24
CPC Classifications
A; A41; A41B; A41B13/00; A41B13/10; A41B2400/00; A41B2400/52
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1201701A
Cited
US1979879A
Cited
US2110544A
Cited
US2262010A
Cited
US2364568A
Cited
US2417787A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-12-26 | 1953-06-27 | 1953-12-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-12-26 | 1957-06-27 | 1957-12-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-12-26 | 1961-06-27 | 1961-12-27 | $7700.00 | Window Closed / Lapsed |