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US2616472A
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Assignee: Individual
•
Filing: 1949-03-16
•
Granted: 1952-11-04
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Expires: 1969-03-16
Abstract
No abstract record available.
Inventors
- 👤 Rudolph V Carlson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 08:32
CPC Classifications
A; A45; A45C; A45C1/00; A45C1/02; Y; Y10; Y10S; Y10S150/00; Y10S150/90
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US569675A
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US633839A
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US945705A
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US1807655A
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US2028309A
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US2080402A
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US2470367A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-11-04 | 1956-05-05 | 1956-11-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-11-04 | 1960-05-05 | 1960-11-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-11-04 | 1964-05-05 | 1964-11-04 | $7700.00 | Window Closed / Lapsed |