Patent US3409996A successfully refreshed from Google Patents.
US3409996A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heating, drying and ventilating apparatus
Assignee: Individual
•
Filing: 1965-08-10
•
Granted: 1968-11-12
•
Expires: 1985-08-10
Abstract
No abstract record available.
Inventors
- 👤 Konstandt Francisco Goldberger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 22:56
CPC Classifications
D; D06; D06F; D06F58/00; D06F58/10; D06F58/14; A; A47; A47K; A47K10/00; A47K10/04; A47K10/06; F; F24; F24H; F24H3/00; F24H3/02; F24H3/04; F24H3/0405; F24H3/0411; F24H3/0417
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US813113A
Cited
US1833631A
Cited
US2120795A
Cited
US2429733A
Cited
US2509137A
Cited
US2470646A
Cited
GB655020A
Cited
US2549106A
Cited
US2850810A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-11-12 | 1972-05-13 | 1972-11-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-11-12 | 1976-05-13 | 1976-11-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-11-12 | 1980-05-13 | 1980-11-12 | $7700.00 | Window Closed / Lapsed |