US2936040A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Acoustical barrier fence
Assignee: Individual
•
Filing: 1958-11-05
•
Granted: 1960-05-10
•
Expires: 1978-11-05
Abstract
No abstract record available.
Inventors
- 👤 Paul J Rennard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:50
CPC Classifications
B; B64; B64F; B64F1/00; B64F1/26; E; E01; E01F; E01F8/00; E01F8/0005; E01F8/0047; E01F8/0076; E04; E04B; E04B1/00; E04B1/62; E04B1/74; E04B1/82; E04B1/8218
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US347107A
Cited
US700785A
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US1878409A
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US2138510A
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US2271871A
Cited
US2720276A
Cited
US2826382A
Cited
US2765994A
Cited
US2706014A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-05-10 | 1963-11-09 | 1964-05-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-05-10 | 1967-11-09 | 1968-05-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-05-10 | 1971-11-09 | 1972-05-10 | $7700.00 | Window Closed / Lapsed |