Patent US3487842A successfully refreshed from Google Patents.
US3487842A
Expired / Lapsed
US
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Privacy/windbreak screen
Assignee: LEON B DUBEY
•
Filing: 1967-10-10
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Granted: 1970-01-06
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Expires: 1987-10-10
Abstract
No abstract record available.
Inventors
- 👤 Edward F Larkin
- 👤 Leon B Dubey
- 👤 Gustav Faeder
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 20:04
CPC Classifications
E; E04; E04H; E04H15/00; E04H15/003; Y; Y10; Y10S; Y10S135/00; Y10S135/903; Y10S135/904
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
CA718314A
Cited
FR380875A
Cited
US1231735A
Cited
US1221564A
Cited
US2890051A
Cited
US2996954A
Cited
US3215279A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-01-05 | 1973-07-07 | 1974-01-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-01-05 | 1977-07-07 | 1978-01-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-01-05 | 1981-07-07 | 1982-01-06 | $7700.00 | Window Closed / Lapsed |