US2827738A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for bending glass
Assignee: PPG Industries Inc
•
Filing: 1955-01-28
•
Granted: 1958-03-25
•
Expires: 1975-01-28
Abstract
No abstract record available.
Inventors
- 👤 Harold E Mckelvey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 07:50
CPC Classifications
C; C03; C03B; C03B23/00; C03B23/02; C03B23/023; C03B23/025; C03B23/027
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2176999A
Cited
US2261023A
Cited
US2518896A
Cited
US2551606A
Cited
US2518951A
Cited
GB710393A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-03-24 | 1961-09-23 | 1962-03-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-03-24 | 1965-09-23 | 1966-03-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-03-24 | 1969-09-23 | 1970-03-25 | $7700.00 | Window Closed / Lapsed |