Patent US3236170A successfully refreshed from Google Patents.
US3236170A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ventilated roof construction
Assignee: HOTEL STATLER-HILTON
•
Filing: 1962-11-29
•
Granted: 1966-02-22
•
Expires: 1982-11-29
Abstract
No abstract record available.
Inventors
- 👤 Melancthon H Meyer
- 👤 Thomas L Fawick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 08:48
CPC Classifications
E; E04; E04D; E04D13/00; E04D13/17; E04D13/174
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-02-21 | 1969-08-23 | 1970-02-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-21 | 1973-08-23 | 1974-02-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-21 | 1977-08-23 | 1978-02-22 | $7700.00 | Window Closed / Lapsed |