Patent US2438699A successfully refreshed from Google Patents.
US2438699A
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Assignee: Individual
•
Filing: 1943-11-29
•
Granted: 1948-03-30
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Expires: 1963-11-29
Abstract
No abstract record available.
Inventors
- 👤 Groetchen Richard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 07:55
CPC Classifications
A; A21; A21B; A21B1/00; A21B1/42; A21B1/44; A47; A47J; A47J37/00; A47J37/04; A47J37/046
Claims Analysis
Total Claims: 0
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Cited
US2062535A
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US2138730A
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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) | 1951-03-30 | 1951-09-29 | 1952-03-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-03-30 | 1955-09-29 | 1956-03-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-03-30 | 1959-09-29 | 1960-03-30 | $7700.00 | Window Closed / Lapsed |