Patent US3486278A successfully refreshed from Google Patents.
US3486278A
Expired / Lapsed
US
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Geodesic dome roof element
Assignee: Individual
•
Filing: 1968-03-29
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Granted: 1969-12-30
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Expires: 1988-03-29
Abstract
No abstract record available.
Inventors
- 👤 Billy L Woods
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 07:52
CPC Classifications
E; E04; E04B; E04B1/00; E04B1/32; E04B1/3211; E04B2001/3235; E04B2001/3241; E04B2001/3247; E04B2001/3294; Y; Y10; Y10T; Y10T403/00; Y10T403/34; Y10T403/341; Y10T403/342; Y10T403/343; Y10T403/344
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2803317A
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US2931467A
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US3006670A
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GB900902A
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US3333375A
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US3333875A
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US3344565A
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US3323820A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-12-29 | 1973-06-30 | 1973-12-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-12-29 | 1977-06-30 | 1977-12-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-12-29 | 1981-06-30 | 1981-12-30 | $7700.00 | Window Closed / Lapsed |