US2826868A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Manufacture of flat glass in continuous ribbon form
Assignee: Pilkington Group Ltd
•
Filing: 1953-06-04
•
Granted: 1958-03-18
•
Expires: 1973-06-04
Abstract
No abstract record available.
Inventors
- 👤 Wynne Hubert Cecil
- 👤 Nuttall James Robert Lewis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 22:12
CPC Classifications
C; C03; C03B; C03B17/00; C03B17/06; C03B17/061; C03B17/062; C03B35/00; C03B35/14; C03B35/22; C03B35/24; C03B35/246
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US972166A
Cited
US1586187A
Cited
US1605736A
Cited
US1761204A
Cited
US1818207A
Cited
US2167290A
Cited
US2487355A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-03-17 | 1961-09-16 | 1962-03-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-03-17 | 1965-09-16 | 1966-03-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-03-17 | 1969-09-16 | 1970-03-18 | $7700.00 | Window Closed / Lapsed |