US2577342A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Double hung sash
Assignee: Individual
•
Filing: 1948-06-08
•
Granted: 1951-12-04
•
Expires: 1968-06-08
Abstract
No abstract record available.
Inventors
- 👤 Thomas C Mancini
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 05:54
CPC Classifications
E; E06; E06B; E06B3/00; E06B3/32; E06B3/50; E06B3/5054; E06B3/5063; E06B3/54; E06B3/58; E06B3/5878; Y; Y10; Y10T; Y10T292/00; Y10T292/08; Y10T292/096; Y10T292/1014; Y10T292/1022
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US519450A
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GB189312618A
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US652273A
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US723038A
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GB190711490A
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US1666839A
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US1621332A
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US1807507A
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US1982753A
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US2406513A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-12-03 | 1955-06-04 | 1955-12-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-12-03 | 1959-06-04 | 1959-12-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-12-03 | 1963-06-04 | 1963-12-04 | $7700.00 | Window Closed / Lapsed |