US3467430A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Double glazing units
Assignee: Pilkington Group Ltd
•
Filing: 1967-08-01
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Granted: 1969-09-16
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Expires: 1987-08-01
Abstract
No abstract record available.
Inventors
- 👤 Albert Henry Lowe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 05:42
CPC Classifications
C; C03; C03B; C03B23/00; C03B23/20; C03B23/24; C03B23/245; B; B65; B65G; B65G49/00; B65G49/05; B65G49/06; B65G49/061; B66; B66C; B66C1/00; B66C1/02; B66C1/0218; B66C1/0237; B66C1/025; B66C1/0281; B65G2249/00; B65G2249/04; B65G2249/045
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-09-15 | 1973-03-17 | 1973-09-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-09-15 | 1977-03-17 | 1977-09-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-09-15 | 1981-03-17 | 1981-09-16 | $7700.00 | Window Closed / Lapsed |