US3011601A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Building construction
Assignee: Rheem Manufacturing Co
•
Filing: 1958-04-29
•
Granted: 1961-12-05
•
Expires: 1978-04-29
Abstract
No abstract record available.
Inventors
- 👤 Perlin Bernard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:38
CPC Classifications
E; E04; E04B; E04B1/00; E04B1/18; E04B1/24; E04B1/02; E04B1/08; E04B9/00; E04B9/18; E04C; E04C2/00; E04C2/02; E04C2/08; E04B1/2403; E04B2001/2463; E04B2001/2481
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2920357A
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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) | 1964-12-04 | 1965-06-05 | 1965-12-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-12-04 | 1969-06-05 | 1969-12-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-12-04 | 1973-06-05 | 1973-12-05 | $7700.00 | Window Closed / Lapsed |