US2941338A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for glass drilling
Assignee: PPG Industries Inc
•
Filing: 1958-02-10
•
Granted: 1960-06-21
•
Expires: 1978-02-10
Abstract
No abstract record available.
Inventors
- 👤 Julius V Santschi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 08:55
CPC Classifications
B; B28; B28D; B28D1/00; B28D1/02; B28D1/04; B28D1/041; Y; Y10; Y10T; Y10T408/00; Y10T408/16; Y10T408/17; Y10T408/173; Y10T408/36; Y10T408/375; Y10T408/378; Y10T408/3792
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1904975A
Cited
US1883993A
Cited
US1973204A
Cited
US2620687A
Cited
US2588267A
Cited
GB703214A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-06-21 | 1963-12-21 | 1964-06-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-06-21 | 1967-12-21 | 1968-06-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-06-21 | 1971-12-21 | 1972-06-21 | $7700.00 | Window Closed / Lapsed |