US2922202A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sound-proof door
Assignee: ELOF HANSSON Inc
•
Filing: 1956-07-24
•
Granted: 1960-01-26
•
Expires: 1976-07-24
Abstract
No abstract record available.
Inventors
- 👤 Michael J Kodaras
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 15:19
CPC Classifications
E; E06; E06B; E06B5/00; E06B5/20; E06B7/00; E06B7/16; E06B7/18; E06B7/20; E06B7/22; E06B7/23; E06B7/2305; E06B7/2307; E06B7/231; E06B7/2316
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US282208A
Cited
US1231069A
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US1673565A
Cited
US1907694A
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US2180177A
Cited
US2190954A
Cited
US2379193A
Cited
US2420240A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-01-25 | 1963-07-27 | 1964-01-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-01-25 | 1967-07-27 | 1968-01-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-01-25 | 1971-07-27 | 1972-01-26 | $7700.00 | Window Closed / Lapsed |