US3064771A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Large span building covering unit
Assignee: Individual
•
Filing: 1959-08-25
•
Granted: 1962-11-20
•
Expires: 1979-08-25
Abstract
No abstract record available.
Inventors
- 👤 Walter D Behlen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 13:01
CPC Classifications
E; E04; E04C; E04C2/00; E04C2/30; E04C2/34; E04B; E04B1/00; E04B1/32; E04B1/3205; E04B2001/3235; E04B2001/3241; E04B2001/327
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US327360A
Cited
US1447966A
Cited
US2371421A
Cited
US2481046A
Cited
US2742114A
Cited
US2852109A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-11-19 | 1966-05-21 | 1966-11-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-11-19 | 1970-05-21 | 1970-11-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-11-19 | 1974-05-21 | 1974-11-20 | $7700.00 | Window Closed / Lapsed |