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US2857643A Expired / Lapsed US ⏱️ 0.0 years remaining

Contour sheets

Assignee: Individual
•
Filing: 1956-05-28
•
Granted: 1958-10-28
•
Expires: 1976-05-28
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Abstract

No abstract record available.

Inventors

  • 👤 Tomsic Guy

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-28 22:33
CPC Classifications
A; A47; A47G; A47G9/00; A47G9/02; A47G9/0238; A47G9/0246; Y; Y10; Y10T; Y10T24/00; Y10T24/23; Y10T24/31; Y10T24/314; Y10T24/316; Y10T24/34; Y10T24/3427; Y10T24/3428; Y10T24/3431; Y10T24/44; Y10T24/44077; Y10T24/44085; Y10T24/44128; Y10T24/44145; Y10T24/44256

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

US1006013A Cited
US1458353A Cited
US1464380A Cited
US1570625A Cited
US2326399A Cited
US2727253A Cited
US2772460A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1961-10-27 1962-04-28 1962-10-28 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1965-10-27 1966-04-28 1966-10-28 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1969-10-27 1970-04-28 1970-10-28 $7700.00 Window Closed / Lapsed

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