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US790476A Expired / Lapsed US ⏱️ 0.0 years remaining

Pneumatic spring.

Assignee: Individual
•
Filing: 1904-10-17
•
Granted: 1905-05-23
•
Expires: 1924-10-17
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Abstract

No abstract record available.

Inventors

  • 👤 Bruce Borland

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-23 15:23
CPC Classifications
B; B64; B64C; B64C25/00; B64C25/32; B64C25/58; B64C25/60

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

No citation records indexed.

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1908-05-22 1908-11-21 1909-05-23 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1912-05-22 1912-11-21 1913-05-23 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1916-05-22 1916-11-21 1917-05-23 $7700.00 Window Closed / Lapsed

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