US3526492A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Glass premelter
Assignee: FRED R MOTSCH
•
Filing: 1968-09-16
•
Granted: 1970-09-01
•
Expires: 1988-09-16
Abstract
No abstract record available.
Inventors
- 👤 Fred R Motsch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 09:35
CPC Classifications
C; C03; C03B; C03B3/00; C03B3/02; C03B3/026; C03B3/023; C03B5/00; C03B5/12; Y; Y02; Y02P; Y02P40/00; Y02P40/50
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1610377A
Cited
US1889510A
Cited
US2455907A
Cited
US2718096A
Cited
US3172648A
Cited
US3320045A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-08-31 | 1974-03-02 | 1974-09-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-08-31 | 1978-03-02 | 1978-09-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-08-31 | 1982-03-02 | 1982-09-01 | $7700.00 | Window Closed / Lapsed |