Patent US3940756A successfully refreshed from Google Patents.
Patent US2830336A successfully refreshed from Google Patents.
US2830336A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Seal
Assignee: Goodman Co LP
•
Filing: 1954-05-13
•
Granted: 1958-04-15
•
Expires: 1974-05-13
Abstract
No abstract record available.
Inventors
- 👤 Robert E Moore
- 👤 Harold F Lathrop
- 👤 Wallace E Kessell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 14:25
CPC Classifications
E; E06; E06B; E06B7/00; E06B7/16; E06B7/22; E06B7/23; E06B7/2305; E06B7/2312; E06B7/2316; F; F24; F24F; F24F1/00; F24F1/02; F24F1/04
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2486828A
Cited
US2234771A
Cited
US1259117A
Cited
US1612257A
Cited
US1809589A
Cited
US1763603A
Cited
US2074295A
Cited
US2151231A
Cited
US2294664A
Cited
US2433104A
Cited
US2513789A
Cited
US2657438A
Cited
US2708016A
Cited
US2717513A
Cited
US2764786A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-04-14 | 1961-10-14 | 1962-04-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-04-14 | 1965-10-14 | 1966-04-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-04-14 | 1969-10-14 | 1970-04-15 | $7700.00 | Window Closed / Lapsed |