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US1197803A Expired / Lapsed US ⏱️ 0.0 years remaining

Clamp for sewer-opening protectors and the like.

Assignee: SAMUEL W GOLDMAN
•
Filing: 1915-12-13
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Granted: 1916-09-12
•
Expires: 1935-12-13
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Abstract

No abstract record available.

Inventors

  • 👤 Frank N Dierks

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-29 19:14
CPC Classifications
B; B01; B01D; B01D29/00; B01D29/01; B01D29/03; E; E03; E03F; E03F5/00; E03F5/02; E04; E04D; E04D13/00; E04D13/04; E04D13/0404; E04D13/0409; E04D2013/0413

Claims Analysis

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References Cited (Backward Citations)

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USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1919-09-12 1920-03-13 1920-09-12 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1923-09-12 1924-03-13 1924-09-12 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1927-09-12 1928-03-13 1928-09-12 $7700.00 Window Closed / Lapsed

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