US3059735A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ceiling grid runner connection means
Assignee: National Gypsum Co
•
Filing: 1959-01-14
•
Granted: 1962-10-23
•
Expires: 1979-01-14
Abstract
No abstract record available.
Inventors
- 👤 Gerard T Sowinski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 10:55
CPC Classifications
E; E04; E04B; E04B9/00; E04B9/06; E04B9/12; E04B9/127; Y; Y10; Y10T; Y10T24/00; Y10T24/34; Y10T24/3427; Y10T24/45; Y10T24/45225; Y10T24/45602; Y10T24/45775; Y10T24/45812; Y10T403/00; Y10T403/16; Y10T403/1616; Y10T403/1624
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US195623A
Cited
US409893A
Cited
CA527121A
Cited
US706347A
Cited
US1235636A
Cited
US2220469A
Cited
US2676679A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-10-22 | 1966-04-23 | 1966-10-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-10-22 | 1970-04-23 | 1970-10-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-10-22 | 1974-04-23 | 1974-10-23 | $7700.00 | Window Closed / Lapsed |