US2545902A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Metal storm window
Assignee: Individual
•
Filing: 1950-07-26
•
Granted: 1951-03-20
•
Expires: 1970-07-26
Abstract
No abstract record available.
Inventors
- 👤 Harry R Sugar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 17:08
CPC Classifications
E; E06; E06B; E06B1/00; E06B1/62; E06B1/64
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1750974A
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US2032726A
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US2200548A
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US2262670A
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US2304598A
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US2288558A
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US2292273A
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US2463432A
Cited
US2477942A
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US2402112A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-03-19 | 1954-09-18 | 1955-03-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-03-19 | 1958-09-18 | 1959-03-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-03-19 | 1962-09-18 | 1963-03-20 | $7700.00 | Window Closed / Lapsed |