US3405927A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spring adjusting device for use in a pressure regulator
Assignee: Elster Kromschroeder GmbH
•
Filing: 1965-06-03
•
Granted: 1968-10-15
•
Expires: 1985-06-03
Abstract
No abstract record available.
Inventors
- 👤 Drabik Josef
- 👤 Klare Manfred
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 05:11
CPC Classifications
F; F16; F16K; F16K31/00; F16K31/12; F16K31/36; F16K31/365; G; G05; G05D; G05D16/00; G05D16/04; G05D16/06; G05D16/063; G05D16/0636; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7781; Y10T137/7793; Y10T137/7822; Y10T137/7823; Y10T137/7825
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1712697A
Cited
US1658951A
Cited
CH161145A
Cited
US2304404A
Cited
US2342001A
Cited
DE911567C
Cited
FR1060713A
Cited
US2891784A
Cited
US3032054A
Cited
US3111962A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-10-15 | 1972-04-15 | 1972-10-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-10-15 | 1976-04-15 | 1976-10-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-10-15 | 1980-04-15 | 1980-10-15 | $7700.00 | Window Closed / Lapsed |