US2684266A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spacer device for multiple glazed units
Assignee: PPG Industries Inc
•
Filing: 1952-03-28
•
Granted: 1954-07-20
•
Expires: 1972-03-28
Abstract
No abstract record available.
Inventors
- 👤 Oscar D Englehart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 07:50
CPC Classifications
E; E06; E06B; E06B3/00; E06B3/66; E06B3/663; E06B3/66309; E06B3/66314
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US330556A
Cited
US1744070A
Cited
US1913702A
Cited
US2306327A
Cited
US2305957A
Cited
US2526752A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-07-19 | 1958-01-18 | 1958-07-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-07-19 | 1962-01-18 | 1962-07-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-07-19 | 1966-01-18 | 1966-07-20 | $7700.00 | Window Closed / Lapsed |