← Back to Patent Explorer
US2628296A Expired / Lapsed US ⏱️ 0.0 years remaining

Flow switch

Assignee: Detroit Lubricator Co
•
Filing: 1950-06-20
•
Granted: 1953-02-10
•
Expires: 1970-06-20
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

No abstract record available.

Inventors

  • 👤 Earnest J Dillman

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-24 15:26
CPC Classifications
H; H01; H01H; H01H36/00; G; G01; G01P; G01P13/00; G01P13/0006; G01P13/0066; H01H35/00; H01H35/24; H01H35/40; Y; Y10; Y10S; Y10S116/00; Y10S116/42

Claims Analysis

Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.

References Cited (Backward Citations)

US1680142A Cited
US2103747A Cited
US2307304A Cited
US2541643A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1956-02-10 1956-08-11 1957-02-10 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1960-02-10 1960-08-11 1961-02-10 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1964-02-10 1964-08-11 1965-02-10 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag