US3370301A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ceiling suspension member and system
Assignee: Walter Jim Corp
•
Filing: 1966-04-14
•
Granted: 1968-02-20
•
Expires: 1986-04-14
Abstract
No abstract record available.
Inventors
- 👤 Robert L Harlan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 10:15
CPC Classifications
E; E04; E04B; E04B9/00; E04B9/06; E04B9/065; E04B9/067; E04B9/068; E04B9/12; E04B9/122
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
CA620469A
Cited
US3010550A
Cited
US3035256A
Cited
US3142367A
Cited
US3221846A
Cited
US3290075A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-02-19 | 1971-08-21 | 1972-02-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-02-19 | 1975-08-21 | 1976-02-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-02-19 | 1979-08-21 | 1980-02-20 | $7700.00 | Window Closed / Lapsed |