US2127073A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air-cooled steam pipe expansion joint
Assignee: Individual
•
Filing: 1937-06-10
•
Granted: 1938-08-16
•
Expires: 1957-06-10
Abstract
No abstract record available.
Inventors
- 👤 Frank J Topping
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:44
CPC Classifications
F; F16; F16L; F16L27/00; F16L27/12; F16L27/127; F16L27/1275; F16L27/12751
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1941-08-15 | 1942-02-14 | 1942-08-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1945-08-15 | 1946-02-14 | 1946-08-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1949-08-15 | 1950-02-14 | 1950-08-16 | $7700.00 | Window Closed / Lapsed |