Patent US3068939A successfully refreshed from Google Patents.
US3068939A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Frame for mounting plastic film
Assignee: Millennium Petrochemicals Inc
•
Filing: 1959-10-20
•
Granted: 1962-12-18
•
Expires: 1979-10-20
Abstract
No abstract record available.
Inventors
- 👤 Nicholas D Commisso
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:37
CPC Classifications
E; E06; E06B; E06B3/00; E06B3/04; E06B3/28; E06B3/285; Y; Y10; Y10S; Y10S24/00; Y10S24/30; Y10S24/38; Y10S24/39; Y10T; Y10T24/00; Y10T24/45; Y10T24/45152; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49863; Y10T29/4987; Y10T29/49872; Y10T29/49876
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US108348A
Cited
US203468A
Cited
US2899256A
Cited
US2035674A
Cited
US2386502A
Cited
US2914936A
Cited
US2939195A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-12-17 | 1966-06-18 | 1966-12-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-17 | 1970-06-18 | 1970-12-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-17 | 1974-06-18 | 1974-12-18 | $7700.00 | Window Closed / Lapsed |