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US2541675A
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Combination window frame construction
Assignee: DONALD O STILES
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Filing: 1949-01-29
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Granted: 1951-02-13
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Expires: 1969-01-29
Abstract
No abstract record available.
Inventors
- 👤 Richard H Stiles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:06
CPC Classifications
E; E06; E06B; E06B3/00; E06B3/32; E06B3/50; E06B3/5054; E06B3/5063; E06B1/00; E06B1/04; E06B1/12; E06B1/18; E06B3/34; E06B3/42; E06B3/44; E06B2003/4438; E06B2003/4453; E06B2003/4492
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2129921A
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US2169865A
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US2367129A
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US2375910A
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US2416269A
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US2426802A
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US2490259A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-02-12 | 1954-08-14 | 1955-02-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-02-12 | 1958-08-14 | 1959-02-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-02-12 | 1962-08-14 | 1963-02-13 | $7700.00 | Window Closed / Lapsed |