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US2898129A Expired / Lapsed US ⏱️ 0.0 years remaining

Clamping device for floor drains with removable clamps

Assignee: Individual
•
Filing: 1956-05-23
•
Granted: 1959-08-04
•
Expires: 1976-05-23
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Abstract

No abstract record available.

Inventors

  • 👤 Lulu E Sisk

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-23 19:18
CPC Classifications
E; E03; E03F; E03F5/00; E03F5/04; E03F5/0407; E03F5/0409

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

US390615A Cited
US483227A Cited
US1261254A Cited
US1601498A Cited
US1809413A Cited
US1918509A Cited
US2091927A Cited
US2716533A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1962-08-03 1963-02-02 1963-08-04 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1966-08-03 1967-02-02 1967-08-04 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1970-08-03 1971-02-02 1971-08-04 $7700.00 Window Closed / Lapsed

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