US3396499A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Structural members for building construction
Assignee: Individual
•
Filing: 1965-10-05
•
Granted: 1968-08-13
•
Expires: 1985-10-05
Abstract
No abstract record available.
Inventors
- 👤 Biffani Raffaele
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 17:48
CPC Classifications
E; E04; E04B; E04B1/00; E04B1/18; E04B1/24; E04B1/2403; E04B2001/2451; E04B2001/2457; E04B2001/2463; E04B2001/2481; E04B2001/2484
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1548083A
Cited
US2231880A
Cited
US3189140A
Cited
US3160249A
Cited
US3261625A
Cited
US3295283A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-08-13 | 1972-02-12 | 1972-08-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-08-13 | 1976-02-12 | 1976-08-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-08-13 | 1980-02-12 | 1980-08-13 | $7700.00 | Window Closed / Lapsed |