Patent US3475868A successfully refreshed from Google Patents.
US3475868A
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US
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Structure having light controlling means
Assignee: Individual
•
Filing: 1967-12-04
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Granted: 1969-11-04
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Expires: 1987-12-04
Abstract
No abstract record available.
Inventors
- 👤 Marvin M Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:33
CPC Classifications
A; A01; A01G; A01G9/00; A01G9/14; A01G9/1407; A01G9/1415; E; E04; E04B; E04B1/00; E04B1/32; E04B1/3211; E04D; E04D13/00; E04D13/03; E04D13/033; E04B2001/3258; Y; Y02; Y02A; Y02A40/00; Y02A40/10; Y02A40/25
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2649101A
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US2782794A
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US2967494A
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US3229429A
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US3213628A
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US3195310A
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US3192575A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-11-03 | 1973-05-05 | 1973-11-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-11-03 | 1977-05-05 | 1977-11-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-11-03 | 1981-05-05 | 1981-11-04 | $7700.00 | Window Closed / Lapsed |