US2108238A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Closure
Assignee: Hell Co
•
Filing: 1936-09-26
•
Granted: 1938-02-15
•
Expires: 1956-09-26
Abstract
No abstract record available.
Inventors
- 👤 Henry A Strelow
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:33
CPC Classifications
F; F16; F16J; F16J13/00; F16J13/16; F16J13/20; Y; Y10; Y10T; Y10T292/00; Y10T292/08; Y10T292/1043; Y10T292/1051; Y10T292/1052; Y10T292/1056; Y10T292/1075; Y10T292/1078; Y10T292/20; Y10T292/225; Y10T292/23
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) | 1941-02-14 | 1941-08-16 | 1942-02-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1945-02-14 | 1945-08-16 | 1946-02-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1949-02-14 | 1949-08-16 | 1950-02-15 | $7700.00 | Window Closed / Lapsed |