US2261948A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pipe line noise eliminator
Assignee: GEROTOR MAY Co
•
Filing: 1940-04-30
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Granted: 1941-11-11
•
Expires: 1960-04-30
Abstract
No abstract record available.
Inventors
- 👤 Ralph H Beach
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:28
CPC Classifications
F; F16; F16L; F16L55/00; F16L55/04; F16L55/045; F16L55/05; F16L55/052; F16L21/00; F16L21/002; F16L21/005; F16L55/053; F16L55/054
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) | 1944-11-10 | 1945-05-12 | 1945-11-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1948-11-10 | 1949-05-12 | 1949-11-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1952-11-10 | 1953-05-12 | 1953-11-11 | $7700.00 | Window Closed / Lapsed |