Patent US2308403A successfully refreshed from Google Patents.
US2308403A
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US
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Combination exhaust hood and clamping device
Assignee: Individual
•
Filing: 1941-10-02
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Granted: 1943-01-12
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Expires: 1961-10-02
Abstract
No abstract record available.
Inventors
- 👤 Terry Warren Franklin
- 👤 Goodenough Russell Edward
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 10:27
CPC Classifications
B; B23; B23Q; B23Q1/00; B23Q1/25; B23Q1/26; B23Q1/28; B23Q1/287; B23Q11/00; B23Q11/0042; B23Q11/0046; Y; Y02; Y02P; Y02P70/00; Y02P70/10; Y10; Y10S; Y10S29/00; Y10S29/059; Y10S29/084
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1946-01-11 | 1946-07-13 | 1947-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1950-01-11 | 1950-07-13 | 1951-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1954-01-11 | 1954-07-13 | 1955-01-12 | $7700.00 | Window Closed / Lapsed |