US3482897A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Periscope
Assignee: Individual
•
Filing: 1966-10-24
•
Granted: 1969-12-09
•
Expires: 1986-10-24
Abstract
No abstract record available.
Inventors
- 👤 Gerhard Hopp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 13:18
CPC Classifications
G; G02; G02B; G02B7/00; G02B7/18; G02B7/1805; F; F41; F41H; F41H5/00; F41H5/26; F41H5/266; G02B23/00; G02B23/02; G02B23/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE83919C
Cited
FR370853A
Cited
US1153259A
Cited
AT79184B
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GB191503549A
Cited
US2423267A
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US3013471A
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US3001450A
Cited
GB994015A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-12-08 | 1973-06-09 | 1973-12-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-12-08 | 1977-06-09 | 1977-12-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-12-08 | 1981-06-09 | 1981-12-09 | $7700.00 | Window Closed / Lapsed |