US3422884A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Condenser tube bundles
Assignee: Baldwin Lima Hamilton Corp
•
Filing: 1966-12-28
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Granted: 1969-01-21
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Expires: 1986-12-28
Abstract
No abstract record available.
Inventors
- 👤 Philip Seiter Otten
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 00:35
CPC Classifications
F; F28; F28F; F28F9/00; F28F9/02; F28F9/04; F28F9/16; F28F9/162; F16; F16L; F16L3/00; F16L3/22; F16L3/223; F16L3/2235; F28F21/00; F28F21/06; F28F21/067; F28F9/007; F28F9/013; F28F9/0132; F28F9/0219; F28F9/0221
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB512633A
Cited
US2176406A
Cited
GB731431A
Cited
US2859948A
Cited
US3186924A
Cited
GB1040284A
Cited
US3324941A
Cited
US3332479A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-01-21 | 1972-07-22 | 1973-01-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-01-21 | 1976-07-22 | 1977-01-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-01-21 | 1980-07-22 | 1981-01-21 | $7700.00 | Window Closed / Lapsed |