US3350125A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Expansion connection for fire rated ceiling grid system
Assignee: Rollform Inc
•
Filing: 1966-03-24
•
Granted: 1967-10-31
•
Expires: 1986-03-24
Abstract
No abstract record available.
Inventors
- 👤 George C Adams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 19:31
CPC Classifications
E; E04; E04B; E04B9/00; E04B9/06; E04B9/065; E04B9/067; E04B9/068; E04B9/08; E04B9/12; E04B9/122; Y; Y10; Y10S; Y10S52/00; Y10S52/05; Y10T; Y10T403/00; Y10T403/21; Y10T403/57
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3189138A
Cited
US3142367A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-10-30 | 1971-05-01 | 1971-10-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-30 | 1975-05-01 | 1975-10-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-30 | 1979-05-01 | 1979-10-31 | $7700.00 | Window Closed / Lapsed |