Patent US2901786A successfully refreshed from Google Patents.
US2901786A
Expired / Lapsed
US
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Window construction
Assignee: PERMANENT GLAZE Inc
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Filing: 1957-01-02
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Granted: 1959-09-01
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Expires: 1977-01-02
Abstract
No abstract record available.
Inventors
- 👤 James W Batts
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 18:01
CPC Classifications
E; E06; E06B; E06B3/00; E06B3/54; E06B3/58; E06B3/60; E06B3/605; E06B3/5807; E06B3/5842
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) | 1962-08-31 | 1963-03-02 | 1963-09-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-08-31 | 1967-03-02 | 1967-09-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-08-31 | 1971-03-02 | 1971-09-01 | $7700.00 | Window Closed / Lapsed |