US2907198A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bracket means for perimeter heating ducts and the like
Assignee: Individual
•
Filing: 1956-06-28
•
Granted: 1959-10-06
•
Expires: 1976-06-28
Abstract
No abstract record available.
Inventors
- 👤 Harlin E Nunamaker
- 👤 James A Nunamaker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 14:23
CPC Classifications
F; F16; F16L; F16L3/00; F16L3/08; F16L3/12; F16L3/1218; F24; F24D; F24D3/00; F24D3/12; F24D3/14; F24D3/141; F24D5/00; F24D5/02; Y; Y02; Y02B; Y02B30/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB190102984A
Cited
US733187A
Cited
US757863A
Cited
US1787038A
Cited
US1905794A
Cited
FR685769A
Cited
US2103010A
Cited
US2309420A
Cited
US2726593A
Cited
FR1105657A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-10-05 | 1963-04-06 | 1963-10-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-10-05 | 1967-04-06 | 1967-10-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-10-05 | 1971-04-06 | 1971-10-06 | $7700.00 | Window Closed / Lapsed |