Patent US4181972A successfully refreshed from Google Patents.
Patent US4245698A successfully refreshed from Google Patents.
Patent US3412554A successfully refreshed from Google Patents.
Patent US4290799A successfully refreshed from Google Patents.
Patent US268301A successfully refreshed from Google Patents.
Patent US2052918A successfully refreshed from Google Patents.
US2052918A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Motor operated valve
Assignee: Honeywell Inc
•
Filing: 1930-12-13
•
Granted: 1936-09-01
•
Expires: 1950-12-13
Abstract
No abstract record available.
Inventors
- 👤 Nelson T Branche
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 02:06
CPC Classifications
F; F16; F16K; F16K31/00; F16K31/02; F16K31/04; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86493
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1939-09-01 | 1940-03-02 | 1940-09-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1943-09-01 | 1944-03-02 | 1944-09-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1947-09-01 | 1948-03-02 | 1948-09-01 | $7700.00 | Window Closed / Lapsed |