US2196676A
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Assignee: CHICAGO METAL HOSE Corp
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Filing: 1937-09-23
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Granted: 1940-04-09
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Expires: 1957-09-23
Abstract
No abstract record available.
Inventors
- 👤 Johnson Axel Fredrick
- 👤 Rawson Charles Hobart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 14:58
CPC Classifications
E; E21; E21B; E21B17/00; E21B17/02; E21B17/04; E21B43/00; E21B43/12; E21B43/121; E21B43/126; E21B43/127; F; F16; F16L; F16L27/00; F16L27/02; F16L27/08; F16L27/0849; F16L27/0857; F16L27/10; F16L27/107; F16L27/11; F16L27/111; Y; Y10; Y10S; Y10S220/00; Y10S220/07
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) | 1943-04-09 | 1943-10-09 | 1944-04-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1947-04-09 | 1947-10-09 | 1948-04-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1951-04-09 | 1951-10-09 | 1952-04-09 | $7700.00 | Window Closed / Lapsed |