Patent US4989682A successfully refreshed from Google Patents.
Patent US2949985A successfully refreshed from Google Patents.
US2949985A
Expired / Lapsed
US
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Metal window and frame structure
Assignee: ROLITE Mfg Inc
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Filing: 1957-04-18
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Granted: 1960-08-23
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Expires: 1977-04-18
Abstract
No abstract record available.
Inventors
- 👤 William A Becker
- 👤 Herbert M Wendling
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 08:28
CPC Classifications
E; E06; E06B; E06B3/00; E06B3/96; E06B3/988; E06B3/32; E06B3/34; E06B3/38; E06B3/9632
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2086043A
Cited
US2643744A
Cited
US2552298A
Cited
US2601164A
Cited
US2788098A
Cited
US2775325A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-08-23 | 1964-02-22 | 1964-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-08-23 | 1968-02-22 | 1968-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-08-23 | 1972-02-22 | 1972-08-23 | $7700.00 | Window Closed / Lapsed |