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US3484328A Expired / Lapsed US ⏱️ 0.0 years remaining

Telescope mirror blank

Assignee: OI Glass Inc
•
Filing: 1965-07-01
•
Granted: 1969-12-16
•
Expires: 1985-07-01
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Abstract

No abstract record available.

Inventors

  • 👤 Lewis M Austin
  • 👤 Robert R Denman
  • 👤 Thomas P O'donnell
  • 👤 Frank Veres

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-03 21:08
CPC Classifications
C; C03; C03C; C03C10/00; C03C10/0018; C03C10/0027; C03B; C03B19/00; C03B19/02; C03B32/00; C03B32/02; G; G02; G02B; G02B5/00; G02B5/08; Y; Y10; Y10T; Y10T428/00; Y10T428/16; Y10T428/162; Y10T428/24; Y10T428/24479; Y10T428/2457

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

US2152394A Cited
US2988456A Cited
US3157522A Cited
FR1268097A Cited
US3246972A Cited
FR1313114A Cited
US3241985A Cited
US3325266A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1972-12-15 1973-06-16 1973-12-16 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1976-12-15 1977-06-16 1977-12-16 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1980-12-15 1981-06-16 1981-12-16 $7700.00 Window Closed / Lapsed

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